Question

4x^2+20x+24=0

Answer 1

4(x+2)(x+3)

Answer 2

when Y is 0,

X is -2 and -3

Answer 3

-3 and -2

Answer 4

4(x^2+5x+6)=0

now what adds to 5 and multiplies to 6?

+2 and +3

On the graph it is displaced the other way, so your roots are -2 and -3.