Dengan sifat penjumlahan aljabar:&nbsp;<img align="middle" alt="begin mathsize 14px style left parenthesis straight f plus straight g right parenthesis left parenthesis straight x right parenthesis equals straight f left parenthesis straight x right parenthesis plus straight g left parenthesis straight x right parenthesis end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mo»(«/mo»«mi mathvariant=¨normal¨»f«/mi»«mo»+«/mo»«mi mathvariant=¨normal¨»g«/mi»«mo»)«/mo»«mo»(«/mo»«mi mathvariant=¨normal¨»x«/mi»«mo»)«/mo»«mo»=«/mo»«mi mathvariant=¨normal¨»f«/mi»«mo»(«/mo»«mi mathvariant=¨normal¨»x«/mi»«mo»)«/mo»«mo»+«/mo»«mi mathvariant=¨normal¨»g«/mi»«mo»(«/mo»«mi mathvariant=¨normal¨»x«/mi»«mo»)«/mo»«/mrow»«/mstyle»«/math»" height="15" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAI0AAAAPCAYAAADZJkx2AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAMyZLetQAAAiZJREFUeNrtmbFLw0AUxoNIESkuHZxEKEXE3T/AzaG4OYqImzgKUoqDuDhKcXNwEkHEQcTFQcRBBCenIoiIg4i7SAnE7/BV4pG7S5P3khT64Bua5N793tfH5ZJ43v9oQE0vn2iQbOebTLmk+IvMJ8K6AB17+cYRcXCwmXJJRNH5RFiHoWeoEjo2T8d8KHAkDZgKUvM/QSUHW9JcaSPKkyz4uPxlZV2FWtqFr9BMzKQB4x/TIh4bW9JcaSPKkyz4uPxlZT2F6ilAOZumTjw2tqS50kZUnVnwcfnLyvoBlTXIsLiKWqHlUc23bhg3Cn1a2NQSeQVVQ8cmoFtoxJHLs9Toqtl0XopPwl9WVr9H0CCB6aqIS2iMALYtc3QcbKqw65AB51AtRi6JlUaCT8pfVlY/5ZIY51q1kZqOOc7VNCrmoDNoA1q0zJtH03DzcfnLyvpOHSrZNJ2Y48q0jNrYunEDHVrm1HOluT2ZeKX4JPxlZc1iI3yv3U+HDOPiboTVTv6AVC3gRpiTj8tfVtaoRzHuplmG9qiYSejEMG6fNnQ2NrUMP9BmTRl1YXj3oOeSaJos+Lj8ZWUt0T2xIvQY3Y016A16oRdlX9r5caitvUTS2VRxd9BU6JoabeBKjlwSTVMkPpe/7Kx5fEZoa78HnxFk/RVhlfyQprp3NvR7CdoJ/d6CNi3je2Fz5ZKIvPlc/vaTl3+hHuUeoW9aQne9328hg+gzf38A+mAQZtN/2yYAAAGndEVYdE1hdGhNTAA8bWF0aCB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMTk5OC9NYXRoL01hdGhNTCI+PG1zdHlsZSBtYXRoc2l6ZT0iMTRweCI+PG1vPig8L21vPjxtaSBtYXRodmFyaWFudD0ibm9ybWFsIj5mPC9taT48bW8+KzwvbW8+PG1pIG1hdGh2YXJpYW50PSJub3JtYWwiPmc8L21pPjxtbz4pPC9tbz48bW8+KDwvbW8+PG1pIG1hdGh2YXJpYW50PSJub3JtYWwiPng8L21pPjxtbz4pPC9tbz48bW8+PTwvbW8+PG1pIG1hdGh2YXJpYW50PSJub3JtYWwiPmY8L21pPjxtbz4oPC9tbz48bWkgbWF0aHZhcmlhbnQ9Im5vcm1hbCI+eDwvbWk+PG1vPik8L21vPjxtbz4rPC9tbz48bWkgbWF0aHZhcmlhbnQ9Im5vcm1hbCI+ZzwvbWk+PG1vPig8L21vPjxtaSBtYXRodmFyaWFudD0ibm9ybWFsIj54PC9taT48bW8+KTwvbW8+PC9tc3R5bGU+PC9tYXRoPpycW6oAAAAASUVORK5CYII=" style="max-width: none; vertical-align: -3px;" width="141" />. Maka:

<img align="middle" alt="begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell left parenthesis straight f plus straight g right parenthesis left parenthesis straight x right parenthesis space end cell equals cell straight f left parenthesis straight x right parenthesis plus straight g left parenthesis straight x right parenthesis end cell row blank equals cell left parenthesis 6 straight x minus 5 right parenthesis plus left parenthesis negative 3 straight x plus 2 right parenthesis end cell row blank equals cell 6 straight x minus 3 straight x minus 5 plus 2 end cell row blank equals cell 3 straight x minus 3 end cell end table end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mtable columnspacing=¨0px¨ columnalign=¨right center left¨»«mtr»«mtd»«mrow»«mo»(«/mo»«mi mathvariant=¨normal¨»f«/mi»«mo»+«/mo»«mi mathvariant=¨normal¨»g«/mi»«mo»)«/mo»«mo»(«/mo»«mi mathvariant=¨normal¨»x«/mi»«mo»)«/mo»«mo»§#160;«/mo»«/mrow»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mrow»«mi mathvariant=¨normal¨»f«/mi»«mo»(«/mo»«mi mathvariant=¨normal¨»x«/mi»«mo»)«/mo»«mo»+«/mo»«mi mathvariant=¨normal¨»g«/mi»«mo»(«/mo»«mi mathvariant=¨normal¨»x«/mi»«mo»)«/mo»«/mrow»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mo»(«/mo»«mn»6«/mn»«mi mathvariant=¨normal¨»x«/mi»«mo»-«/mo»«mn»5«/mn»«mo»)«/mo»«mo»+«/mo»«mo»(«/mo»«mo»-«/mo»«mn»3«/mn»«mi mathvariant=¨normal¨»x«/mi»«mo»+«/mo»«mn»2«/mn»«mo»)«/mo»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»6«/mn»«mi mathvariant=¨normal¨»x«/mi»«mo»-«/mo»«mn»3«/mn»«mi mathvariant=¨normal¨»x«/mi»«mo»-«/mo»«mn»5«/mn»«mo»+«/mo»«mn»2«/mn»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»3«/mn»«mi mathvariant=¨normal¨»x«/mi»«mo»-«/mo»«mn»3«/mn»«/mtd»«/mtr»«/mtable»«/mstyle»«/math»" height="74" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -37px;" width="210" />&nbsp;

Jadi,&nbsp;<img align="middle" alt="Error converting from MathML to accessible text." class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mtable columnspacing=¨0px¨ columnalign=¨right center left¨»«mtr»«mtd/»«mtd/»«mtd»«mo mathsize=¨14px¨»(«/mo»«mi mathvariant=¨normal¨ mathsize=¨14px¨»f«/mi»«mo mathsize=¨14px¨»+«/mo»«mi mathvariant=¨normal¨ mathsize=¨14px¨»g«/mi»«mo mathsize=¨14px¨»)«/mo»«mo mathsize=¨14px¨»(«/mo»«mi mathvariant=¨normal¨ mathsize=¨14px¨»x«/mi»«mo mathsize=¨14px¨»)«/mo»«mo mathsize=¨14px¨»§#160;«/mo»«/mtd»«/mtr»«/mtable»«mtable columnspacing=¨0px¨ columnalign=¨right center left¨»«mtr»«mtd/»«mtd»«mo mathsize=¨14px¨»=«/mo»«/mtd»«mtd/»«/mtr»«/mtable»«mtable columnspacing=¨0px¨ columnalign=¨right center left¨»«mtr»«mtd/»«mtd/»«mtd»«mn mathsize=¨14px¨»3«/mn»«/mtd»«/mtr»«/mtable»«mtable columnspacing=¨0px¨ columnalign=¨right center left¨»«mtr»«mtd/»«mtd/»«mtd»«mi mathvariant=¨normal¨ mathsize=¨14px¨»x«/mi»«/mtd»«/mtr»«/mtable»«mtable columnspacing=¨0px¨ columnalign=¨right center left¨»«mtr»«mtd/»«mtd/»«mtd»«mo mathsize=¨14px¨»-«/mo»«/mtd»«/mtr»«/mtable»«mtable columnspacing=¨0px¨ columnalign=¨right center left¨»«mtr»«mtd/»«mtd/»«mtd»«mn mathsize=¨14px¨»3«/mn»«/mtd»«/mtr»«/mtable»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -3px;" width="117" />.

Diketahui&nbsp;<img align="middle" alt="begin mathsize 14px style straight f left parenthesis straight x right parenthesis equals 6 straight x minus 5 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mi mathvariant=¨normal¨»f«/mi»«mo»(«/mo»«mi mathvariant=¨normal¨»x«/mi»«mo»)«/mo»«mo»=«/mo»«mn»6«/mn»«mi mathvariant=¨normal¨»x«/mi»«mo»-«/mo»«mn»5«/mn»«/mrow»«/mstyle»«/math»" height="14" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -2px;" width="81" />&nbsp;dan&nbsp;<img align="middle" alt="Error converting from MathML to accessible text." class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi mathsize=¨14px¨»g«/mi»«mo mathsize=¨14px¨»(«/mo»«mi mathvariant=¨normal¨ mathsize=¨14px¨»x«/mi»«mo mathsize=¨14px¨»)«/mo»«mo mathsize=¨14px¨»=«/mo»«mo mathsize=¨14px¨»-«/mo»«mn mathsize=¨14px¨»3«/mn»«mi mathvariant=¨normal¨ mathsize=¨14px¨»x«/mi»«mo mathsize=¨14px¨»+«/mo»«mn mathsize=¨14px¨»2«/mn»«/math»" height="15" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -3px;" width="101" />. Tentukan:

1. (<img align="middle" alt="Error converting from MathML to accessible text." class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»(«/mo»«mrow»«mi mathvariant=¨normal¨ mathsize=¨14px¨»f«/mi»«mo mathsize=¨14px¨»+«/mo»«mi mathvariant=¨normal¨ mathsize=¨14px¨»g«/mi»«mo mathsize=¨14px¨»)«/mo»«mo mathsize=¨14px¨»(«/mo»«mi mathvariant=¨normal¨ mathsize=¨14px¨»x«/mi»«mo mathsize=¨14px¨»)«/mo»«/mrow»«/math»" height="17" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -3px;" width="58" />&nbsp;

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