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Simplified evaluation: 3 (a + 1) ^ 2 - (a + 1) (2a-1) where a = 1 It's simplified evaluation!
3（a+1)^2-(a+1)(2a-1)
=(a+1)(3a+3-2a+1)
=(a+1)(a+4)
=(1+1)(1+4)
=2*5
=10
RELATED INFORMATIONS
- 1. Simplify evaluation 3 (a + 1) ^ 2 - (2a + 1) (2a-1), where a = 1
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- 12. First simplify, then evaluate: 1 / (a + 1) - (a + 3) / (a ^ 2-1) * (a ^ 2-2a + 1) / (a ^ 2 + 4A + 3), where a satisfies a ^ 2 + 2a-1 = 0
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