4(3X+Y)²-(2X-Y)²分解因式快
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4(3X+Y)²-(2X-Y)²分解因式快
4(3X+Y)²-(2X-Y)²分解因式
快
4(3X+Y)²-(2X-Y)²分解因式快
4(3X+Y)²-(2X-Y)²
=(6x+2y+2x-y)(6x+2y-2x+y)
=(8x+y)(4x+3y)
4(3X+Y)²-(2X-Y)²
=[2(3x+y)+(2x-y)][2(3x+y)-(2x-y)]
=(8x+y)(4x+3y)
原式=[2(3X+Y)]²-(2X-Y)²
=(6X+2Y)²-(2X-Y)²
=(6X+2Y+2X-Y)(6X+2Y-2X+Y)
=(8X+Y)(4X+3Y)
4(3X+Y)²-(2X-Y)²
=[2(3x+y)+(2x-y)[2(3x+y)-(2x-y)]
=(8x+y)(4x+3y)