Question

24q7 – 42q4r + 36q3r2 – 63r3 how would you factor the expression by grouping?

Answer 1

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Answer 2

I'd start by pulling all the common q's out of the first two terms and all the common r's out of the second two..

\[24q^7 – 42q^4r + 36q^3r^2 – 63r^3\]\[= 2q^4(12q^3 - 21r) + 3r^2(12q^3 - 21r)\]

Answer 3

And you can probably continue from there.

Answer 4

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Answer 5

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