Question

find the number of zeros(x-intercept) y=a^2+a-56 show the step please.

Answer 1

Factor
What factors multiply to equal 56 and subtract to
equal 1?

Answer 2

-7.8

Answer 3

Yes
(X-7)(x+8)
Check by foiling
X^2 +8x -7x -56
X^2 +x -56