Mathematics · Algebraic Identities
Select the mathematical expression that is NOT an identity.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(a - b)2 = a2 + b2 - 2ab
- 2(a + b)2 = a2 + b2✓
- 3(a + 1)(a + 2) = a2 + 3a + 2
- 4(a + b)2 = a2 + b2 + 2ab
Correct answer
(a + b)2 = a2 + b2
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