a根号下x\b*(-b\a根号下ax)*2b根号下a\b(a>0,b>0,x>0)化简.
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a根号下x\b*(-b\a根号下ax)*2b根号下a\b(a>0,b>0,x>0)化简.
a根号下x\b*(-b\a根号下ax)*2b根号下a\b(a>0,b>0,x>0)
化简.
a根号下x\b*(-b\a根号下ax)*2b根号下a\b(a>0,b>0,x>0)化简.
a根号下(x\b) *[-b\a根号下(ax)]*2b根号下(a\b) (a>0,b>0,x>0)
=a*(-b\a)*2b*根号[(x\b)*(ax)*(a\b)]
=-2b²根号(1/b²)
=-2b²*(b分之1)
=-2b