幂的乘方与积的乘方:求(xy³ⁿ)²+(xy六次方)ⁿ的值
问题描述:
幂的乘方与积的乘方:求(xy³ⁿ)²+(xy六次方)ⁿ的值
答
(xy³ⁿ)²+(xy^6)ⁿ
= x^2y^6n+x^ny^6n