Question

-2x2 + 1 for x = -3​

Answer 1

- 17

Explanation:

Evaluate 1 - 2 x^2 where x = -3:

1 - 2 x^2 = 1 - 2×(-3)^2

Hint: | Evaluate (-3)^2.

(-3)^2 = 9:

1 - 29

Hint: | Multiply -2 and 9 together.

-2×9 = -18:

-18 + 1

Hint: | Subtract 18 from 1.

1 - 18 = -17:

Answer: -17

Answer 2

Explanation:

-2(-3) *2+1

6*2+1

12+1

13