xx+12*12=yy(y-x=2)

分类: 作业答案 • 2022-04-30 08:54:29

问题描述：

xx+12*12=yy(y-x=2)

答

xx是x^2(x的平方)的意思吗?
==>xx+12*12=yy
==>x^2-y^2=-144
==>(x+y)(x-y)=-144
==>x+y=-144/(x-y)=72
==>x=35,y=37