SOLUTION: factor 2x^5-26x^3+72x compleately and also and solve 3x+15=x^3+5x^2

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Question 392777: factor 2x^5-26x^3+72x compleately and also and solve 3x+15=x^3+5x^2
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!




Start by taking out



Then let





Substitute back:



Factor the difference of two squares:



Then, if "factor completely" means to factor over the complex numbers:



By the way, you only get one question (and answer) per post. Re-post the other one.

John

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