Question

If x = 3, what is the value of 2x^2 - 9?

A.
9
B.
36
C.
27
D.
29

Answer 1

Substitute the 3 for x into the equation.

2(3)^2 - 9

2(9) - 9

18 - 9

9

So, the answer is A) 9.

:)

Answer 2

A. 9

Explanation:

3^2=9

9x2=18

18-9=9