Rigorous) (Skill 1.21)
A. ( x 2 y 3 )2 = x 4 y 6
B. m 2 (2n)3 = 8m 2 n3
C. (m3 n 4 ) /(m 2 n 2 ) = mn 2
D. ( x + y 2 )2 = x2 + y 4
Answer:D
Rigorous) (Skill 1.21)
A. ( x 2 y 3 )2 = x 4 y 6 B. m 2 (2n)3 = 8m 2 n3 C. (m3 n 4 ) /(m 2 n 2 ) = mn 2 D. ( x + y 2 )2 = x2 + y 4