Factor and check x^2 - 15x + 56 = 0

Asked by AnneS2 on 08 Jun 12:17

Last updated by anonymous on 09 Jun 12:13

Answered by CherieS on 09 Jun 12:13

x^2 - 15x + 56 = 0

(x )(x ) ( -8)( -7)=0

(x-8) (x-7) = 0

Check:

(x-8) (x-7) = 0

(x)(x) (x)(-7) (-8)(x) (-8)(-7)=0

x^2 -7x -8x +56=0

x^2 - 15x + 56 = 0