
求解~ ~ ~ (3x+2y)²-(2x-3y)²
3个回答
2013-05-05
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(3x+2y)²-(2x-3y)²
解:原式=(3X+2Y-2X+3Y)(3x+2y+2x-3y)
=(X+5Y)(5X-Y)
解:原式=(3X+2Y-2X+3Y)(3x+2y+2x-3y)
=(X+5Y)(5X-Y)
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(3x+2y)²-(2x-3y)²
=(3x+2y+2x-3y)(3x+2y-2x+3y)
=(5x-y)*(x+5y)
=(3x+2y+2x-3y)(3x+2y-2x+3y)
=(5x-y)*(x+5y)
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展开全部
=(3x+2y+2x-3y)(3x+2y-2x+3y)
=(5x-y)(x+5y)
=(5x-y)(x+5y)
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