3
lesson pretestMultiple Choice

Pretest

Question 3 • CMS 2026-2027 NC Math 2 CREDIT RECOVERY

What is the following sum? 4 times open paren 5th root of x squared y close paren plus 3 times open paren 5th root of x squared y close paren

Answer
A
7 times open paren 5th root of x to the 4th power y squared close paren
B
7 times open paren 10th root of x to the 4th power y squared close paren
C
7 times open paren 10th root of x squared y close paren
D
7 times open paren 5th root of x squared y close paren

Explanation

Both terms contain the same radical, the fifth root of x²y, so add their coefficients: 4 + 3 = 7. The sum is 7 times the fifth root of x²y, which is choice A.

AI-written and checked against the verified answer.

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