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2^2-(2) +(-2) + (-2)^2 = ?
2^2-(2) +(-2) + (-2)^2 = ?
zero
-4
8
none
Explanation
2^2-(2) +(-2) + (-2)^2 = ?
= 4 - 2 - 2 +(-4)
= 4 - 2 - 2 - 4
= - 2 - 2
= - 4
ND10-07-2023