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x=-\frac{2\sqrt{3}\left(1+\sqrt{3}\right)}{\left(1-\sqrt{3}\right)\left(1+\sqrt{3}\right)}
Rationalize the denominator of \frac{2\sqrt{3}}{1-\sqrt{3}} by multiplying numerator and denominator by 1+\sqrt{3}.
x=-\frac{2\sqrt{3}\left(1+\sqrt{3}\right)}{1^{2}-\left(\sqrt{3}\right)^{2}}
Consider \left(1-\sqrt{3}\right)\left(1+\sqrt{3}\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
x=-\frac{2\sqrt{3}\left(1+\sqrt{3}\right)}{1-3}
Square 1. Square \sqrt{3}.
x=-\frac{2\sqrt{3}\left(1+\sqrt{3}\right)}{-2}
Subtract 3 from 1 to get -2.
x=-\left(-\sqrt{3}\left(1+\sqrt{3}\right)\right)
Cancel out -2 and -2.
x=-\left(-\sqrt{3}-\left(\sqrt{3}\right)^{2}\right)
Use the distributive property to multiply -\sqrt{3} by 1+\sqrt{3}.
x=-\left(-\sqrt{3}-3\right)
The square of \sqrt{3} is 3.
x=-\left(-\sqrt{3}\right)-\left(-3\right)
To find the opposite of -\sqrt{3}-3, find the opposite of each term.
x=\sqrt{3}-\left(-3\right)
The opposite of -\sqrt{3} is \sqrt{3}.
x=\sqrt{3}+3
The opposite of -3 is 3.