分解因式:(2x+3y)^2-(2x-y)^2

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分解因式:(2x+3y)^2-(2x-y)^2
分解因式:(2x+3y)^2-(2x-y)^2

分解因式:(2x+3y)^2-(2x-y)^2
(2x+3y)²-(2x-y)²
=[(2x+3y)-(2x-y)][(2x+3y)+(2x-y)]
=(2x+3y-2x+y)(2x+3y+2x-y)
=4y(4x+2y)
=8y(2x+y)

望采纳,若不懂,请追问.

4x2+9y2+12xy-4x2-y2+4xy=8y2+16xy=8y(2x+y)

(2x+3y)^2-(2x-y)^2
=(2x+3y+2x-y)(2x+3y-2x+y)
=(4x+2y)(4y)
=8y*(2x+y)

10xy+8y^2=(5分之根号2乘X+2乘根号2乘y)^2