Question

Evaluate 3x2 − x, if x = -4.

Answer 1

\(f(x)=3x^2-x\)
Now substitute -4 instead of the x's and then solve

Answer 2

\(f(-4)=3(-4)^2-(-4)\)

Answer 3

Solve and there is your answer

Answer 4

thanks

Answer 5

Be careful with the negatives. (-x)^2=x^2
Meaning any negative value squared will always be positive