Answer:
x=3 x = -1
Step-by-step explanation:
f(x) = x^2 − 2x − 3
Set the function equal to zero
0 = x^2 − 2x − 3
Factor
What two numbers multiply to -3 and add to -2
-3 *1 = -3
-3+1 = -2
0 = (x-3)(x+1)
Using the zero product property
x-3 =0 x+1 =0
x=3 x = -1
5x-15-2x=6
3x=21
x=7
Therefore, x must equal 7.
You have the answer correct
-1, -8
0, -9
1, -10
2, -11
Hope that helps!
