Question 388446
I'm assuming you mean,
{{{(4-sqrt(x))/(2+sqrt(x))}}}
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{{{(4-sqrt(x))/(2+sqrt(x))=((4-sqrt(x))/(2+sqrt(x)))*((2-sqrt(x))/(2-sqrt(x)))}}}
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{{{(4-sqrt(x))/(2+sqrt(x))=(8-4*sqrt(x)-2*sqrt(x)+x)/(4-2*sqrt(x)+2*sqrt(x)+x)}}}
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{{{(4-sqrt(x))/(2+sqrt(x))=(8-6*sqrt(x)+x)/(4+x)}}}