1.(x+0.5y)(x-0.5y)(x平方-0.25y平方)2.(x+0.5)平方-(x-0.5)(x+0.5)=0.5
问题描述:
1.(x+0.5y)(x-0.5y)(x平方-0.25y平方)2.(x+0.5)平方-(x-0.5)(x+0.5)=0.5
答
1、
原式=(x²-0.25y²)(x²+0.25y²)
=x^4-0.0625y^4
2、
原式=x²+x+0.25-x²+0.25+0.5
=x+1