3x²+4xy-y²因式分解(过程)
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3x²+4xy-y²因式分解(过程)
3x²+4xy-y²因式分解(过程)
3x²+4xy-y²因式分解(过程)
这个真分解不了,要是+y方可以
(3x+y)*(x+y)
3x²+2xy-y²
=x²+2xy+y²+2x²-2y²
=(x+y)²+2(x²-y²)
=(x+y)²+2(x+y)(x-y)
=(x+y)(x+y+2x-2y)
=(x+y)(3x-y)答案不对呀,,,,??据说答案很长一串,仁兄麻烦再想想我是把你题目...
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3x²+2xy-y²
=x²+2xy+y²+2x²-2y²
=(x+y)²+2(x²-y²)
=(x+y)²+2(x+y)(x-y)
=(x+y)(x+y+2x-2y)
=(x+y)(3x-y)
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3x²-y²=8x²+xy+y²=4
6x²-xy-15y²=0 求x²-2xy+4y²/2x²-3xy-3y²告诉下
6x²-xy-15y²=0 求2x²-3xy-3y²分之x²-2xy+4y²
4x²y-xy²
已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² 已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² + xY- 2Y² =求x² - 4x Y+ Y² =
若x²+xy-2y²=0,则x²+3xy+y²/x²+y²
x²+xy-2y²=0则x²+3xy+y²/x²+y²
因式分解 3x²+4xy-y²
因式分解3x²+4xy-y²
3x²+4xy-y²因式分解(过程)
因式分解3x²+4xy+y²
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1 3x²+4xy-y²=2 4xy+1-4x²-y²=
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