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SOLUTION: Simplify (x^2-13x+42)/ (x^2-36)
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Question 168901
:
Simplify (x^2-13x+42)/ (x^2-36)
Answer by
NerdvanaGirl(8)
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Okay, first you need to factor (expand) each polynomial (group: the top of the fraction is a polynomial, and the bottom of the fraction is another polynomial).
X^2-13x+42 is the same as:
(x-6)(x-7)
x^2-36 is the same as:
(x+6)(x-6)
You can cross out both (x-6), from the top and the bottom. Here is what is left.
(x-7)/(x+6)
That is the simplified form. Hopefully that makes sense, and helps! :)