AoPS

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

Problem

Simplify (2a+3b)(a−2b)−(a+b)(2a−3b)(2a+3b)(a-2b)-(a+b)(2a-3b). (a) 3b23b^2 (b) 4a2−2ab−9b24a^{2}-2ab-9b^{2} (c) −3b2-3b^2 (d) −ab−3b2-ab-3b^2

Related theory

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