(2x-y)(y+2x)-2(3x+2y)(-2y-3x)-(11x-3y)
1个回答
展开全部
(2x-y)(y+2x)-2(3x+2y)(-2y-3x)-(11x-3y)
=4x^2-y^2 + 2(9x^2+4y^2)-11x+3y
=22x^2+7y^2-11x+3y
=4x^2-y^2 + 2(9x^2+4y^2)-11x+3y
=22x^2+7y^2-11x+3y
追问
(2x-y)(y+2x)-2(3x+2y)(-2y-3x)-(11x-3y) *(2x+3y)
追答
(2x-y)(y+2x)-2(3x+2y)(-2y-3x)-(11x-3y) *(2x+3y)
=4x^2-y^2+2(3x+2y)^2-(11x-3y)*(2x+3y)
= 4x^2-y^2+18x^2+24xy+8y^2-(22x^2+33xy-9y^2-6xy)
=22x^2+7y^2+24xy-22x^2-27xy+9y^2
=16y^2-3xy
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