(x的n次方y的3n的次方)²+(x²y的6次方 )的n次方,
问题描述:
(x的n次方y的3n的次方)²+(x²y的6次方 )的n次方,
(x的n次方y的3n的次方)²+(x²y的6次方 )的n次方,(x²y³)的4次方+(-x)的8次方·(y6次方)²
答
原式=x^2ny^6n+x^2ny^6n
=2x^2ny^6n
原式=x^8y^12+x^8y^12
=2x^8y^12(1)(x的n次方y的3n的次方)²+(x²y的6次方 )的n次方(2)(x的n次方y的3n的次方)²+(x²y的6次方 )的n次方(3)(x²y³)的4次方+(-x)的8次方·(y6次方)²做了3道的,重做12一样采纳