Sederhanakan -x²-2x+35 per x²-25

Sederhanakan
-x²-2x+35 per x²-25

-x² – 2x + 35 = (-x+5)(x+7) = -(x-5)(x+7)
x² – 25 = (x+5)(x-5)
coret x-5 nya jadi
-(x+7) / (x+5)
-x-7 / x+5

$frac{- x^{2} -2x +35}{ x^{2} -25}$
$frac{- (x^{2} +2x -35)}{ x^{2} -25}$
$frac{- (x-5)(x+7)}{ (x+5)(x-5)}$

sesama x-5, dicoret

$frac{- (x+7)}{ (x+5)}$
$frac{-x-7}{ x+5}$

Maaf kalau salah