Answer:
-3
Step-by-step explanation:
First multiply.
4x * 4x = 4x^2
Then write it out.
4x^2 - 8x - 60 = 0
Then we can take out 4 out of everything.
4(x^2 - 2x - 15) = 0
Then we can factor.
4(x - 5)(x + 3) = 0
So the zeros of the function are 5 and -3.
The smallest of those two is -3.
