$48 because you have to find the totals for both then subtract
I haven’t done math in forever, do you want us to simplify it? Bc it would be 2x+8=-16=4x+6 but I’m not sure
f(x) = 20x² - 18x - 25
f(-1) = 20(-1)² - 18(-1) - 25
= 20 + 18 - 25
= 13
Answer: 3/4
Step-by-step explanation:
This is the answer not sure if you wanted it graph or not