(2x-3y)^2+(4x+9y)(4x-9y)+(2x+3y)^2计算或因式分解

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(2x-3y)^2+(4x+9y)(4x-9y)+(2x+3y)^2计算或因式分解

(2x-3y)^2+(4x+9y)(4x-9y)+(2x+3y)^2计算或因式分解
(2x-3y)^2+(4x+9y)(4x-9y)+(2x+3y)^2
计算或因式分解

(2x-3y)^2+(4x+9y)(4x-9y)+(2x+3y)^2计算或因式分解
原式=(4x+12xy+9y)-(16x-81y)+(4x-12xy+9y) =4x+12xy+9y-16x+81y+4x-12xy+9y =-8x+99y
求采纳