化简求值(4x-3y)^2-(5x+y)^2-(3x+2y)(4y-3x),其中x1/3,y=6

化简求值(4x-3y)^2-(5x+y)^2-(3x+2y)(4y-3x),其中x1/3,y=6
化简求值(4x-3y)^2-(5x+y)^2-(3x+2y)(4y-3x),其中x1/3,y=6

化简求值(4x-3y)^2-(5x+y)^2-(3x+2y)(4y-3x),其中x1/3,y=6
原式=16x²-24xy+9y²-25x²-10xy-y²+9x²-6xy-8y²
=-40xy
=-40*1/3*6
=-80