Question

What is the value of -3|15 - s| + 2s3 when's = -3

Answer 1

-3|15 - s| + 2s^3 when s = -3 is
-3|15 - (-3)| + 2(-3)^3 = -3|15 + 3| + 2(-27) = -3|18| + (-54) = -3(18) - 54 = -54 - 54 = -108

Answer 2

The value of the expression -3|15 - s| + 2s3 when s = -3 is - 108

How to determine the value

From the expression,

-3|15 - s| + 2s3

Expand the parenthesis, we get

-45 + 3s + 2s^3

So when s= -3, substitute it into the expression

= -45 + 3(-3) + 2(-3)^3

= -45 -9 + 2(-27)

= -45 -9 - 54

= -108

Therefore, the value of the expression -3|15 - s| + 2s3 when s = -3 is - 108

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