Write as a Function of x q(3)=1/(x^2-9)

Math
Divide each term by and simplify.
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Divide each term in by .
Cancel the common factor of .
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Cancel the common factor.
Divide by .
Simplify .
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Multiply the numerator by the reciprocal of the denominator.
Simplify the denominator.
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Rewrite as .
Since both terms are perfect squares, factor using the difference of squares formula, where and .
Combine fractions.
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Multiply and .
Move to the left of .
To rewrite as a function of , write the equation so that is by itself on one side of the equal sign and an expression involving only is on the other side.
Write as a Function of x q(3)=1/(x^2-9)

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