Factor and check -1x^2 + 1x + 2 = 0

Asked by AnneS2 on 30 Jul 08:34

Last updated by anonymous on 31 Jul 15:07

Answered by CherieS on 31 Jul 15:07

-1x^2 + 1x + 2 = 0

-1(x^2-x-2)=0

-1(x )(x ) ( -2)( +1)=0

-1(x-2) (x+1) = 0

check:

-1(x-2) (x+1) = 0

-1 (x)(x) (x)(1) (-2)(x) (-2)(1)=0

-1 x^2 +x -2x -2 =0

-1(x^2-x-2)=0