Factor and check: x^2 - 19x + 90 = 0

Asked by AnneS2 on 06 Sep 04:28

Last updated by anonymous on 08 Sep 14:15

Answered by CherieS on 08 Sep 14:15

x^2 - 19x + 90 = 0

(x )(x ) ( -10)( -9)=0

(x-10) (x-9) = 0

Check:

(x-10) (x-9) = 0

(x)(x) (x)(-9) (-10)(x) (-10)(-9)=0

x^2 -9x -10x +90=0

x^2 -19x +90=0