Question

Find the x-intercepts of the graph y=x^2+8x+12?

Answer 1

let y=0


(x+2(x+6) =0

x= -2
x=-6

Answer 2

to find the x intercepts set y = 0

0 = x² + 8x + 12

now solve for x, best way to do it is factoring

0 = (x + 6)(x + 2)

now separate them and solve for x

x + 6 = 0

x = -6


x + 2 = 0

x = -2


the x intercepts are (-2,0) and (-6,0)