Answer:
x=-4 x=-1
Step-by-step explanation:
y=x^2+5x+4
To find the x intercepts, set the equation equal to zero
0 = x^2+5x+4
Factor the equation
What 2 numbers multiply to 4 and add to 5
4*1 = 4
4+1 =5
0 =(x+4) (x+1)
Using the zero product property
x+4 =0 x+1=0
x=-4 x=-1
These are the x intercepts
