Asked by Hanu
Factor 15a^5-5a^2
Answers
Answered by
drwls
Start with 5a^2*(3a^3 -1)
The term in parentheses can be written as b^3 -1, where b = (3^1/3)*a, and factored into two terms, (b-1)(b^2 +2b + 1)
The term in parentheses can be written as b^3 -1, where b = (3^1/3)*a, and factored into two terms, (b-1)(b^2 +2b + 1)
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