因式分解 4×175²-100×25 x²(x-y)+(y²-x²)x²(x-y)+(y²-x²)4×175²-100×25

来源：学生作业学帮网编辑：学帮网时间：2024/06/18 02:07:29

因式分解 4×175²-100×25 x²(x-y)+(y²-x²)
x²(x-y)+(y²-x²)
4×175²-100×25

x²(x-y)+(y²-x²)
=x²(x-y)-(x+y)(x-y)
=(x-y)(x²-x-y)
4×175²-100×25
=4×(175²-25²)
=4×(175+25)(175-25)
=4×200×150
=120000