SOLUTION: Factor completely: 64x^3+343
factors of 64=1,2,4,8,16,32,64
". ". 343=1,7,49
(8x^2+7)(8x+49) can't foil & I am stuck!
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Question 258302: Factor completely: 64x^3+343
factors of 64=1,2,4,8,16,32,64
". ". 343=1,7,49
(8x^2+7)(8x+49) can't foil & I am stuck!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Factor completely: 64x^3+343
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It's the sum of 2 cubes.
Sub 4x for a, and 7 for b
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The difference of 2 cubes is similar:
The difference of any 2 odd powers is also similar.
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