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28-10-2016
Mathematics

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DUPLICATE What is the a3+b3 equal to? verify by an activity

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Nirina7 Nirina7

03-11-2016

Perhaps the question is a^3 + b^3=?, otherwise a3 + b3 doesnt make sens
a^3 + b^3= (a+b)(a^2-ab+b^2)

for example a=2 b=1, 2^3+1^3=8+1=9, and (2+1)(2^2-2x1+1^2)=3x(3)=9

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