计算:(2/3x√9x+6x√y/x)+(y√x/y-√1/x)帮忙啊~~~~~~~~~~~~~~~~~~~~~~~~~!
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计算:(2/3x√9x+6x√y/x)+(y√x/y-√1/x)帮忙啊~~~~~~~~~~~~~~~~~~~~~~~~~!
计算:(2/3x√9x+6x√y/x)+(y√x/y-√1/x)
帮忙啊~~~~~~~~~~~~~~~~~~~~~~~~~!
计算:(2/3x√9x+6x√y/x)+(y√x/y-√1/x)帮忙啊~~~~~~~~~~~~~~~~~~~~~~~~~!
(2/3x√9x 6x√y/x) (y√x/y-x²√1/x)
=2/3*x*3√x 6x*√(xy)/x y*√(xy)/y-x²√x/x
=2x√x 6√(xy) √(xy)-x√x
=x√x 7√(xy)
计算:(2/3x√9x+6x√y/x)+(y√x/y-√1/x)帮忙啊~~~~~~~~~~~~~~~~~~~~~~~~~!
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