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(a+b)³-(a-b)³ factorise it |
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Answer» -STEP EXPLANATION:(a+b)^3-(a-b)^3={(a+b)-(a-b)}{(a+b)^2+(a+b)(a-b)+(a-b)^2}=(a+b-a+b)(a^2+2ab+b^2+a^2-b^2+a^2-2ab+b^2)=2B(3a^2+b^2) |
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