What is the product of #(5r-4)(r^2-6r+4)#?

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What is the product of #(5r-4)(r^2-6r+4)#?

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Answer 1 · 2018-03-23T11:46:18

#5r^3-34r^2+4r-16#

Explanation:

#5r^3-30r^2-20r# first step is to distribute #5r# over #r^2-6r+4#
#-4r^2+24r-16# distribute #-4# over #r^2-6r+4#
#5r^3-30r^2-20r-4r^2+24r-16# combine the two
#5r^3-34r^2+4r-16# combine like terms

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What is the product of #(5r-4)(r^2-6r+4)#?

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