Question

fatore as expressões:

a) 4x-x²/4-x

b) 2x²+8x/x²+8x+16

Answer 1

Fatore e simplifique:

$a) \frac{4x-x^2}{4-x} = \frac{x(4-x)}{4-x}= \frac{4-x}{4-x} =1,comx \neq 4 \\ \\ b) \frac{2x^2+8x}{x^2+8x+16}= \frac{2x(x+4)}{(x+4)^2}= \frac{2x}{x+4} ,comx \neq -4$