You can put this solution on YOUR website! Perform the multiplication. Simplify the answer, if possible.
a^2 + ab + b^2 / a^3 - b^3 multiplied by ac + ad - bc - bd / c^2 - d^2
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Factor the difference of cubes & difference of squares
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cancel a^2+ab+b^2, group factor
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factor out (c+d)
Cancel (a-b) and (c+d)