Answer:
X
Step-by-step explanation:
It's a symbol (usually a letter) standing in for an unknown numerical value in an equation.
Answer:
40
Step-by-step explanation:
f(4) = 3(4²) - 2(4)
= 3(16) - 8
= 48 - 8
= 40
when x=4, f(x) = 40
Answer:
85
Step-by-step explanation:
