Find the value of a3 + 3b2 when a = 2 and b = -2

Given:

a = 2 and b = -2.

To find:

The value of .

Solution:

We need to find the value of expression at a = 2 and b = -2.

Substituting a = 2 and b=-2 in , we get

Therefore, the value of expression at a = 2 and b = -2 is 20.

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