Question 7 • 26/27 ALGEBRA II A
Square the first parenthesis: (6x⁵)² = 36x¹⁰. Then multiply the coefficients and combine like bases: (−1)(36)(−2) = 72, x·x¹⁰ = x¹¹, and y⁶·y = y⁷, giving 72x¹¹y⁷, choice B.
AI-written and checked against the verified answer.