因式分解。各位大神帮忙!
展开全部
1.6(2P-q)²-11(q-2p)+3
=6(2P-q)²+11(2p-q)+3
=[3(2p-q)+1]*[2(2p-q)+3]
=(6p-3q+1)(4p-2q+3)
2.3X^2+5XY-2Y^2+X+9Y-4
=(x+2y)(3x-y)+x+9y-4
=(x+2y)(3x-y)+(4x+8y-3x+y)-4
=(x+2y)(3x-y)+4(x+2y)-(3x-y)-4
=(x+2y)(3x-y) -(3x-y)+4(x+2y) -4
=(x+2y-1)(3x-y)+4(x+2y-1)
=(x+2y-1)(3x-y+4)
=6(2P-q)²+11(2p-q)+3
=[3(2p-q)+1]*[2(2p-q)+3]
=(6p-3q+1)(4p-2q+3)
2.3X^2+5XY-2Y^2+X+9Y-4
=(x+2y)(3x-y)+x+9y-4
=(x+2y)(3x-y)+(4x+8y-3x+y)-4
=(x+2y)(3x-y)+4(x+2y)-(3x-y)-4
=(x+2y)(3x-y) -(3x-y)+4(x+2y) -4
=(x+2y-1)(3x-y)+4(x+2y-1)
=(x+2y-1)(3x-y+4)
更多追问追答
追问
第二个??
追答
怎么了
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询