Solve for x_2
x_{2}=\frac{1}{2}=0.5
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x_{2}\times 4=\sqrt{4}
Add 2 and 2 to get 4.
x_{2}\times 4=2
Calculate the square root of 4 and get 2.
x_{2}=\frac{2}{4}
Divide both sides by 4.
x_{2}=\frac{1}{2}
Reduce the fraction \frac{2}{4} to lowest terms by extracting and canceling out 2.
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