Dicari nilai <img align="middle" alt="begin mathsize 14px style x end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mi»x«/mi»«/mstyle»«/math»" height="8" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAICAYAAADA+m62AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAHXkAHPQAAAGNJREFUeNpjYECADUBsicQXBOLdQCzJgAakgfgMEDMBMRsQrwFiFQYcoByK5wOxAQMeoATEf4DYHp8iUSA+CsThQNyISxEP1OE6UP5sIDZFVwRy+BYgtkYSEwbik0DMwUAqAACfQwv2q08w7gAAAGp0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bXN0eWxlIG1hdGhzaXplPSIxNHB4Ij48bWk+eDwvbWk+PC9tc3R5bGU+PC9tYXRoPjNvx4wAAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="10" />&nbsp;dengan menggunakan teorema Pythagoras

<img align="middle" alt="begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 25 squared end cell equals cell 24 squared plus x squared end cell row blank left right double arrow cell x squared equals 25 squared minus 24 squared end cell row blank left right double arrow cell x equals plus-or-minus square root of 625 minus 576 end root end cell row blank equals cell plus-or-minus square root of 49 end cell row blank equals cell plus-or-minus 7 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»«msup»«mn»25«/mn»«mn»2«/mn»«/msup»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«msup»«mn»24«/mn»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»§#8660;«/mo»«/mtd»«mtd»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«msup»«mn»25«/mn»«mn»2«/mn»«/msup»«mo»-«/mo»«msup»«mn»24«/mn»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»§#8660;«/mo»«/mtd»«mtd»«mi»x«/mi»«mo»=«/mo»«mo»§#177;«/mo»«msqrt»«mn»625«/mn»«mo»-«/mo»«mn»576«/mn»«/msqrt»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mo»§#177;«/mo»«msqrt»«mn»49«/mn»«/msqrt»«/mtd»«/mtr»«mtr»«mtd/»«mtd»«mo»=«/mo»«/mtd»«mtd»«mo»§#177;«/mo»«mn»7«/mn»«/mtd»«/mtr»«/mtable»«/mstyle»«/math»" height="104" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJUAAABoCAYAAAD4rrKIAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAA04ZBmKwAABc1JREFUeNrtnUFoFUkQhhuRICEIokHFw4pIEBHxEnBZgi6EPSwioogKgoiLyLIHb3pZVDwoHrwIexEJYVFBREREBQ8eREQUCe4igqweREQCCh6CBOFtFanB8Tnd093TM91v3v9Bkffyhn7VNTVdPZP+00qlwe9kn8jekG1R6RHTv9RjkyxnyAbIxsjewr+eik3yzCf7DP96MjbJ8gfZWfjXk7EJBtf4+2Sz8vMvsqGuYzoa6+ZnshtyRTbpX56tGt9c/esEjnMdsUmWm2SbyObJ+wNkVz0CPCJtDUTwL2MR2XONv67+hUyqumLTM/DJm/EI8D0JXgz/Mv4m26Px19W/kEnVVGyS5Qey/zwCXFYaTWW043ASi/zLyuQVg7+u32Xrz3WyH7tGy7tkyyt8d+vgur+tIMCzcjt8kWxDYv7xiXxGtrjCKNPxTPoVZE9kBB2Q0rwa92tzDEnCbDUcMygn9CnZeEL+TZJtD1y6XNo4IjYR+YJLiqVklx2usGGyqRpGA1//qpTTEEm1iuyL3FAAKR3X5KctC8leJOxfkyMVX2APyHaRnUA6fZ2jrCs5ZkImyNlVeV2CmIp/sZJqSCblmX/nyUaRUnalg58NTctk/anctqfkX52PA3TwpJyfPf2U+x3fKDwiW4C0AgAAAAAAAAAAAACgPUBN0864RQVqmnbGLQmgpmln3KICNU074xaNWGqaGGqfWCqfZCaCOg4F/J6YapoYap9YKp/oNXpCTAerTy7kAlOFmGqaFNQ+Tal8orFInO1Y2l1lXlkZSjFSl5omlNqnCk2pfKJxSxxcZXHsmBx7zXBMSoqRutQ+VRO+LpVPMgxLEtiOVDdLJplMbMVIqmqfplU+UeHO3iHbZziGn+Ies2wvhGKkLjVN0UU11UCMY6h8kpis7zQkyRaHkxRLMZKq2ieWyqcVxFaMpKr2iaXy6XlSUIykqvZJVeUDAAAAAAAAAAAAAAAAAACQKPy3TF5T3oFVXjAJhN1qblUsAMG4TbYXYQChWEb2kWwJQgFCwZK0y5rPeEkPizl5nTsvoXlI9mvu85D6Qx9s2rb9/rK+etOUHrAOfE/UY1W82nVI5llj8p4FHrzG/U7umFD6wyb7zOvhTnv01Zmm9YCpBHillL4iFfCxkousCF/9YZN9/lN9XRFbpa9GYugBbYZn1zLhE+CTZOc0n/Fq0RWO7fnqD5tKqjWqWE/g01cjvawHrJqM/5Bt1nw2I3OKKXnN4s/1Je1V1R+6XmCu2kY+1wsD9dVIW/SApkQ6Lp/nA7WR7KXS/wOML3LxZPLz5TIKb9PMv2LqD23a3q/0qieXvloTUw/YVPm7RPYq957L3inD8e8LEo5L+euu36WkP9S1PU/K8nDFvnpN1ntZD2iTgDy0H5bX72SOoWOyYEI7KKN6PvAp6Q91be80PDax7Ws0Ut9B6jdJrB3yKMHEWnn2tDY3Il3sKi+x9Ye2bV8pKWU2fY1CDD2gT9l8IZ8ftWh/VO6MZ2RE2mD5/Xnq1B/atj2tmaC79BUYGJETvwyhACHZiBAAAAAAAAAAAAAAAAD6gbp1f6APge4PBAe6PxAU6P5AcEy6vwzTvny8RITXVfGSEV51OY6QtofQur8M0758vNEjL2ZbmkuwRwprkfo6qVYqve4vw7QvHy+M616AOGIx8oEGkiFF3Z9S5fvyPVPfr0/nBP2E09rOhLTBpPuz2ZdvVEalTIjJihrWOc7i1LS//B1X7ro/2335WCzAgoPPUg5/kdegD8qfq+7P1x+WqL3Dae2fibqL7s93znYQE/X+wkX3Z5NU+X9GwmWUpeUf1LcyNdAHE3UX3V9ZUvFD0X/VnMT/g9wpjuK09B/Q/YFagO4PAAAAAAAAAAAAAADQGqDJA15J40LRHi0AVEqqoj1aQMvLUp1r1HV7tADgnYy6PVoA8Bqp9mOUQvkLmVRle7QA4JxUZXu0AOBM2R4tADiXTZs9WoCG/wF0+DeKW0H8/wAAAyt0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bXN0eWxlIG1hdGhzaXplPSIxNHB4Ij48bXRhYmxlIGNvbHVtbmFsaWduPSJyaWdodCBjZW50ZXIgbGVmdCIgY29sdW1uc3BhY2luZz0iMHB4Ij48bXRyPjxtdGQ+PG1zdXA+PG1uPjI1PC9tbj48bW4+MjwvbW4+PC9tc3VwPjwvbXRkPjxtdGQ+PG1vPj08L21vPjwvbXRkPjxtdGQ+PG1zdXA+PG1uPjI0PC9tbj48bW4+MjwvbW4+PC9tc3VwPjxtbz4rPC9tbz48bXN1cD48bWk+eDwvbWk+PG1uPjI8L21uPjwvbXN1cD48L210ZD48L210cj48bXRyPjxtdGQvPjxtdGQ+PG1vPiYjeDIxRDQ7PC9tbz48L210ZD48bXRkPjxtc3VwPjxtaT54PC9taT48bW4+MjwvbW4+PC9tc3VwPjxtbz49PC9tbz48bXN1cD48bW4+MjU8L21uPjxtbj4yPC9tbj48L21zdXA+PG1vPi08L21vPjxtc3VwPjxtbj4yNDwvbW4+PG1uPjI8L21uPjwvbXN1cD48L210ZD48L210cj48bXRyPjxtdGQvPjxtdGQ+PG1vPiYjeDIxRDQ7PC9tbz48L210ZD48bXRkPjxtaT54PC9taT48bW8+PTwvbW8+PG1vPiYjeEIxOzwvbW8+PG1zcXJ0Pjxtbj42MjU8L21uPjxtbz4tPC9tbz48bW4+NTc2PC9tbj48L21zcXJ0PjwvbXRkPjwvbXRyPjxtdHI+PG10ZC8+PG10ZD48bW8+PTwvbW8+PC9tdGQ+PG10ZD48bW8+JiN4QjE7PC9tbz48bXNxcnQ+PG1uPjQ5PC9tbj48L21zcXJ0PjwvbXRkPjwvbXRyPjxtdHI+PG10ZC8+PG10ZD48bW8+PTwvbW8+PC9tdGQ+PG10ZD48bW8+JiN4QjE7PC9tbz48bW4+NzwvbW4+PC9tdGQ+PC9tdHI+PC9tdGFibGU+PC9tc3R5bGU+PC9tYXRoPsrwaooAAAAASUVORK5CYII=" style="max-width: none; vertical-align: -52px;" width="149" />&nbsp; &nbsp;

Karena panjang maka tidak mungkin negatif.

Jadi, nilai&nbsp;<img align="middle" alt="begin mathsize 14px style x equals 7 end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mi»x«/mi»«mo»=«/mo»«mn»7«/mn»«/mrow»«/mstyle»«/math»" height="11" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -1px;" width="35" />.&nbsp;

<img align="middle" alt="undefined" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mo»§#160;«/mo»«/mstyle»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAG90RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bXN0eWxlIG1hdGhzaXplPSIxNHB4Ij48bW8+JiN4QTA7PC9tbz48L21zdHlsZT48L21hdGg+EzxlwgAAAABJRU5ErkJggg==" style="max-width: none; vertical-align: -1px;" width="4" /><img alt="" src="https://imgix2.ruangguru.com/assets/miscellaneous/png_yxoyoy_7754.PNG" style="width: 300px; height: 398px;" />&nbsp;<img align="middle" alt="undefined" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mo»§#160;«/mo»«/mstyle»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAG90RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bXN0eWxlIG1hdGhzaXplPSIxNHB4Ij48bW8+JiN4QTA7PC9tbz48L21zdHlsZT48L21hdGg+EzxlwgAAAABJRU5ErkJggg==" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

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