Answer: 36
Work Shown:
8x^2 + 6x - 8
8(2)^2 + 6(2) - 8
8(4) + 6(2) - 8
32 + 12 - 8
44 - 8
36
Explanation: I replaced each copy of x with 2. Then I used the order of operations (PEMDAS) to simplify to a single number. You can use a regular calculator or a graphing calculator to verify the final answer.