mr-peabody
mr-peabody
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sum of cubes and difference of cubes a^3 + b^3 = (a + b)(a^2 - ab + b^2) a^3 - b^3 = (a - b)(a^2 + ab + b^2) The thing to remember is the SOAP method Same Opposite Always Positive This gives the signs to use a^3 + b^3 = (a +(same) …