Math
Factor and check: x^2 - 19x + 90 = 0
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Asked by
AnneS2
Last updated by
anonymous
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