lets assume one number is x
then 2nd number will be 5x-2
so product is 120
x (5x-2) = 120
5x^2 - 2x = 120
so answer is last option
Answer:
Step-by-step explanation:
70, I think
f(10)= -10^2- 3(10)
f(10)= 100-30
f(10) = 70