5a² + 5a - 2
where a is equal to minus 2
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Answer:
5a² + 5a - 2 = 0
When a = -2, then
⇒ 5 (-2)² + 5 (-2) - 2
⇒ 5 (4) - 5(2) - 2
⇒ 20 - 10 - 2
⇒ 8
Therefore, the answer is 8
Hope it helps...
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