3x平方-7xy+2y平方+8x-y-3因式分解怎么算,
问题描述:
3x平方-7xy+2y平方+8x-y-3因式分解怎么算,
答
(3x²-7xy+2y²)+(8x-y)-3=(3x-y)(x-2y)+(8x-y)-3=(3x-y-1)(x-2y+3)
3x平方-7xy+2y平方+8x-y-3因式分解怎么算,
(3x²-7xy+2y²)+(8x-y)-3=(3x-y)(x-2y)+(8x-y)-3=(3x-y-1)(x-2y+3)