x^2+2xy-8y^2-4x-10y+3因式分解

2024-12-23 02:18:06
推荐回答(1个)
回答1:

x^2+2xy-8y^2-4x-10y+3
=(x+4y)(x-2y)-4x-10y+3
=(x+4y-1)(x-2y-3)
十字相乘
x+4y ﹣1

x-2y ﹣3