Question 8 • Adv. Algebra II S1 Original
To get an x⁵y⁵ term, choose 5 factors of 2x and 5 factors of −3y from the 10 factors. Its coefficient is ¹⁰C₅(2)⁵(−3)⁵, which matches choice B. Since (−3)⁵ is negative, the coefficient is negative.
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