Pertanyaan

Diketahui fungsi f ( x ) = x 2 − 2 x − 8 dan g ( x ) = x + 2 Tentukan: g ( x ) f ( x )

Diketahui fungsi $f (x) = x^{2} - 2 x - 8$ dan $g (x) = x + 2$

Tentukan: $\frac{f ( x )}{g ( x )}$

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Jawaban terverifikasi

Jawaban

i,

i, $table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell fraction numerator straight f left parenthesis straight x right parenthesis over denominator straight g left parenthesis straight x right parenthesis end fraction end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank straight x end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank minus end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 4 end table$

Pembahasan

Hasil bagi aljabar Jadii,

Hasil bagi aljabar

$table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator straight f left parenthesis straight x right parenthesis over denominator straight g left parenthesis straight x right parenthesis end fraction end cell equals cell fraction numerator straight x squared minus 2 straight x minus 8 over denominator straight x plus 2 end fraction end cell row blank equals cell fraction numerator left parenthesis straight x minus 4 right parenthesis left parenthesis straight x plus 2 right parenthesis over denominator straight x plus 2 end fraction end cell row blank equals cell straight x minus 4 end cell end table$

Jadii, $table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell fraction numerator straight f left parenthesis straight x right parenthesis over denominator straight g left parenthesis straight x right parenthesis end fraction end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank straight x end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank minus end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank 4 end table$