Question

URGENTTTTTTTT Coroniță! !!

(1-2x )^2-7×(1-2x ) =.....??

Answer 1

(1-2x )^2-7×(1-2x ) =
1 - 4x + 4x² - 7 + 14x =
10x + 4x² - 6 

daca sa descompui in factori ireductibili :
= (1-2x) (1 - 2x - 7) =
   (1 - 2x) ( -2x - 6) 

Answer 2

$(1-2x)^{2}-7*(1-2x)=$

$=(1-2x)(1-2x)-(1-2x)*7=$

$Dam~factor~pe~(1-2x).$

$=(1-2x)[(1-2x)-7]=$

$=(1-2x)(1-2x-7)=$

$=(1-2x)(-2x-6)=$

$=(1-2x)[-2*(x+3)]=$

$=-2(1-2x)(x+3)$