题目内容
(-6x2y)2·xn+1y的计算结果为
[
]A.-6xn+3y2
B.-6xn+5y2
C.36xn+3y2
D.36xn+5y3
答案:D
解析:
解析:
|
(-6x2y)2·xn+1y=(-6)2x2×2y2·xn+1y = 36x4+(n+1)y2+1= 36xn+5y3故选 D. |
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