Answer:
4 is the correct answer
Step-by-step explanation:
y=(x+5)(x-3)
so x intercept means the value of x when y is zero
0=(x+5)(x-3)
x+5=0 so x=-5
x-3=0 so x=3
-3+(-5)
Checking our answer:
Adding this does indeed give -8
20*10=200
B*h=The Answer
200 Square Ft is your answer