How do you factor the polynomials fg-5g+4f-20fg−5g+4f−20?

1 Answer
George C.
Dec 16, 2016

fg-5g+4f-20 = (g+4)(f-5)fg−5g+4f−20=(g+4)(f−5)

Explanation:

This factors by grouping:

fg-5g+4f-20 = (fg-5g)+(4f-20)fg−5g+4f−20=(fg−5g)+(4f−20)

color(white)(fg-5g+4f-20) = g(f-5)+4(f-5)fg−5g+4f−20=g(f−5)+4(f−5)

color(white)(fg-5g+4f-20) = (g+4)(f-5)fg−5g+4f−20=(g+4)(f−5)

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