4. Which functions have a zero at x = -5?
Check all that apply.
f(x) = 3x²-75
☐ g(x)=x²-x-20
□h(x) = x² + 19x + 70
☐j(x) = 9x + 45
k(x)=3x²-11x-20
☐ p(x) = 2x² + 7x − 15