AoPS

MATHEMATICS · Single correct · AoPS · Mathematics · Special Factorizations · Special Factorizations

Problem

Simplify (2x+3y)2−(2x−3y)2+(x+y)3(2x + 3y)^2 - (2x - 3y)^2 + (x + y)^3. (a) x3+3x2y+3xy2+y3x^{3} + 3x^{2}y + 3xy^{2} + y^{3} (b) x3+y3+24xyx^{3} + y^{3} + 24xy (c) x3+3x2y+3xy2+y3+24xyx^{3} + 3x^{2}y + 3xy^{2} + y^{3} + 24xy (d) x3+3x2y+3xy2+y3−24xyx^{3} + 3x^{2}y + 3xy^{2} + y^{3} - 24xy

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