SOLUTION: Subtract the following 5 over X^2-16 - 3 over X^2-x-12 {{{5/(x^2 - 16)}}} - {{{3/(x^2 - x

SOLUTION: Subtract the following 5 over X^2-16 - 3 over X^2-x-12 {{{5/(x^2 - 16)}}} - {{{3/(x^2 - x - 12)}}}

Question 85672: Subtract the following
5
over
X^2-16
-
3
over
X^2-x-12
-
Answer by scianci(186) (Show Source): You can put this solution on YOUR website!
You need an LCD. Put your denominators in factored form:
-
Now it's easy to see that the LCD is (x + 4)(x - 4)(x + 3)
Rewrite each fraction as an equivalent fraction with a denominator of (x + 4)(x - 4)(x + 3):
-
Distribute:
-
Combine like terms in the numerators:

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