How do you factor #5r ^ { 3} s + 30r ^ { 2} - 5r ^ { 2} s - 30r ^ { 3}#?
2 Answers
Jun 26, 2018
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Explanation:
First we notice that
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We rearrange:
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Jun 26, 2018
Explanation:
Factoring by grouping, we get
Factoring out