Math

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

Asked by AnneS2 on 03 Nov 07:14

Last updated by anonymous on 04 Nov 12:19

1 Answers

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Answered by CherieS on 04 Nov 12:19

x^2 + 4x - 77 = 0

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

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

Check:

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

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

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

x^2 +4x -77=0