Question 10 • CMS 2026-2027 NC Math 2 CREDIT RECOVERY
Rewrite each radicand by separating perfect cubes: x¹⁰ = x⁹·x and y¹³ = y¹²·y. Thus, ∛(125x¹⁰y¹³) = 5x³y⁴∛(xy), and ∛(27x¹⁰y¹³) = 3x³y⁴∛(xy). Adding like terms gives 8x³y⁴∛(xy), which is choice B.
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