Question: Math

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

In Math | Asked by AnneS2
Answers

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

CherieS | 264 days ago