let y = x^2
4y^2 -21y + 20 = 0
solve for y
then substitute back in to get x
Answer: f(-2) = -6
Step-by-step explanation: f(-2) = -2 -4
f(-2) = -6
Answer:
6
Step-by-step explanation:
Answer: Exact form: 6/5 Decimal form: 1.2 Mixed Number form: 1 1/5
hope this helps! :)