SOLUTION: reduce the rational exprssion to lowest terms. assume that the variable represent only numbers for which the denominators are nonzero: a^2 - b^2 a - b

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Question 174574: reduce the rational exprssion to lowest terms. assume that the variable represent only numbers for which the denominators are nonzero:
a^2 - b^2
a - b

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
%28a%5E2-b%5E2%29%2F%28a-b%29is the difference of squares over a-b . It really wasnt made plain that this is being divided by a-b......so it is an assumption that hopefully is correct......
:
%28a%2Bb%29cross%28%28a-b%29%29%2Fcross%28%28a-b%29%29
:
highlight%28a%2Bb%29