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PSAT Math Multiple-Choice Practice Question 584

Question: 584

Simplify: x4y2 + x3y5 + xy6 + 2x3y5

Correct Answer: C

Explanation:

(C) Combine like terms, and then factor out what is common to all of the terms:

x4y2 + x3y5 + xy6 + 2x3y5 =

x4y2 + 3x3y5 + xy6 =

xy2(x3 + 3x2y3 + y4)

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