Find the simplified product of .

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

Problem

Find the simplified product of (x+4)(x+7)(x+4)(x+7). (a) x2+28x+11x^2 + 28x + 11 (b) x2+11x+28x^2 + 11x + 28 (c) x2+4x+7x+28x^2 + 4x + 7x + 28 (d) x2+11x+11x^2 + 11x + 11

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