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The expansion of (203x^2 - 199x - 3)(72y^2 + 27y + 1)

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[GMAT math practice question]

The expansion of \((203x^2 - 199x - 3)(72y^2 + 27y + 1)\) is a1x^2y^2 + a2x^2y + a3x^2 +..+ a7y^2 + a8y + a9. What is a1 + a2 + a3 +..+ a7 + a8 + a9?

A. \(100\)

B. \(122\)

C. \(125\)

D. \(200\)

E. \(228\)

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