Mathematics · Algebraic Expressions
For a ≠ b, the expression a2 - b2 + a(a + b)a(a - b) + b(a - b) is equal to:
- 1a - 2ba + b
- 22a - ba - b✓
- 32a - ba + b
- 4a - 2ba - b
Correct answer
2a - ba - b
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