Math

x^2 - 4x - 77 = 0 Factor and check

Asked by AnneS2 on 02 Nov 07:31

Last updated by anonymous on 03 Nov 13:29

1 Answers

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Answered by CherieS on 03 Nov 13:29

x^2 - 4x - 77 = 0

(x )(x ) ( -11)( +7)=0

(x-11) (x+7) = 0

Check:

(x-11) (x+7) = 0

(x)(x) (x)(7) (-11)(x) (-11)(7)=0

x^2 +7x -11x -77=0

x^2 -4x -77=0