(b) Simplify the rational expression defining the function.\\ $f(x) = \frac{2x-6}{x^2+2x-15}$ simplifies to $f(x) = \boxed{}$ where $x \neq 3$.
Added by Kelsey V.
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To simplify this expression, we can factor out the greatest common factor (GCF) from the numerator and denominator. The GCF of 2x^6 and (x+3) is 1, so we don't need to factor out anything. Show more…
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