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OpenStudy (anonymous):
more help from anyone
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OpenStudy (anonymous):
OpenStudy (amistre64):
what have you considered?
OpenStudy (anonymous):
i think its b
OpenStudy (anonymous):
use this formula a^3-b^3=(a-b)(a^2+ab+b^2)
OpenStudy (amistre64):
you seem to have tried to memorize the formula, but got tripped up on the signs
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OpenStudy (anonymous):
maybe thanks for the help ^.^
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