PSAT Math Multiple-Choice Question 584: Answer and Explanation
Question: 584
Simplify: x4y2 + x3y5 + xy6 + 2x3y5
- A.
- B.
- C.
- D.
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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