SOLUTION: hello, I am having a problem figuring out how to apply this formula A3 + B3= (A+B) (A2-A+B + B2) 64x3 - 27 = the answer is 8x3 - 125 = (2x-5) (4x2 + 10x +25) my answer th

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Question 1094987: hello, I am having a problem figuring out how to apply this formula
A3 + B3= (A+B) (A2-A+B + B2)
64x3 - 27 =
the answer is 8x3 - 125 = (2x-5) (4x2 + 10x +25)
my answer that is incorrect was 9x3 - 125 = (2x-5) (4x2 + 6x + 15) can you please tell me what I am dong wrong?

Answer by ikleyn(52910)   (Show Source): You can put this solution on YOUR website!
.
The formula written in your post is INCORRECT.


The correct formula/(formulas) is/(are) THIS/(THESE):


       = ,


       = .



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