SOLUTION: Factor {{{8x^3+343}}}
Factor {{{x^4-20x^2+64}}}
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Question 313031: Factor
Factor
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Is the sum of two cubes, just follow the pattern:
(a^2\ \mp\ ab\ +\ b^2))
Let 
Then
Factor the quadratic in 
, then substitute back 
and factor each of the factors. You will end up with 4 factors which is what we expected from a 4th degree polynomial.
John
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