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posted by Mandy on Sunday, May 19, 2013 at 10:26am.
How do i factor this problem completely? 216x^3 - y^3
recall that a^3-b^3 = (a-b)(a^2+ab+b^2) You have (6x)^3 - y^3 = (6x-y)((6x)^2 + (6x)y + y^2) = (6x-y)(36x^2 + 6xy + y^2)
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