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A is not B

Algebra Level 1

Which of the following equals \(\dfrac { { a }^{ 2 }-{ b }^{ 2 } }{ a-b } \) for \(a\neq b\)?

\[b-a\] \[{ a }^{ 2 }{ +b }^{ 2 }\] \[a+b\] \[a-b\]

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by Archit Boobna

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