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Question

which number cann be used in place of the variable in each rational expression
a^2-b^2/a-b
16 years ago

Answers

drwls
What you have written equals a + b, because the numerator equals (a+b)(a-b); so the a-b term cancels the denominator.

Your question is unclear. Both a and b can be any number.
16 years ago

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