Question

Evaluate the expression:
2 (m + 1) – n3 when m = -2 and n = 3

Answer 1

-29

Explanation:

When number 3 after n is an exponent:

Let m = -2 and n = 3

2 (m + 1) – n³

= 2 (-2 + 1) - 3³

= -4 + 2 - 3³

= -4 + 2 - 27

= -2 - 27

= -29

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Answer 2

-15

Explanation:

2 * (-4+2) = -6

-6 - 9 = -15