Question

Evaluate 4(a2 + 2b) - 2b when a = 2 and b = –2.

Answer 1

4

Explanation:

a^2=2^2=4

2b=2(-2)=-4

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4(4+(-4))-2(-2)

4(4-4)+4

4(0)+4

0+4

4

Answer 2

Answer: 4

Look at attachment