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OpenStudy (anonymous):
Simplify the rational expression. State any excluded values. x^2-36/42x-7x^2
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OpenStudy (psymon):
They want you to try to factor the numerator and the denominator best you can in order to simplify. But before you do, we need to see what values to exclude. The values we exclude are values of x that will make the denominator 0. So basically, we need to say 42x - 7x^2 = 0 and then solve for x. Do you know how to try and do that?
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