Mathematics · Ratio and Proportion
Find the missing term (?) in the following expression: (a2 - b2) : (a2 - ab) :: (a3 + b3) : ?
- 1a(a2 + b2 - 2ab)
- 2a(a2 + 2b2 - ab)
- 3a(a2 + b2 - ab)✓
- 4a2(a + b - 2ab)
Correct answer
a(a2 + b2 - ab)
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