2/3根号9x+6根号x/4-2x根号1/x

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2/3根号9x+6根号x/4-2x根号1/x
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2/3根号9x+6根号x/4-2x根号1/x
2/3根号9x+6根号x/4-2x根号1/x

2/3根号9x+6根号x/4-2x根号1/x
2/3根号9x+6根号x/4-2x根号1/x
=2/3*3√x+6/2*√x-2x/x*√x
=2√x+3√x-2√x
=2√x-2√x+3√x
=3√x