AoPS

MATHEMATICS · Single correct · AoPS · Mathematics · x Marks the Spot · x Marks the Spot

Problem

Simplify (2x+3y)(x−4y)(2x+3y)(x-4y). (a) 2x2−11xy−12y22x^{2}-11xy-12y^{2} (b) 2x2−5xy−12y22x^{2}-5xy-12y^{2} (c) 2x2+5xy−12y22x^{2}+5xy-12y^{2} (d) 2x2−5xy+12y22x^{2}-5xy+12y^{2}

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