英语:This book cost the same as that one(保持原意)

问题描述:

英语:This book cost the same as that one(保持原意)
This book is ( ) ( ) ( )than one
1.x的平方-64
2.-10x的2m+1次方乘以y的m-2次方+15x的m+1次方乘以y的2m-4次方

英语的,the same prize,数学的.-_-||现在没笔算Y(^_^