Solve for a
a=2\sqrt{3}+2\approx 5.464101615
a=2-2\sqrt{3}\approx -1.464101615
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a-2=2\sqrt{3} a-2=-2\sqrt{3}
Take the square root of both sides of the equation.
a-2-\left(-2\right)=2\sqrt{3}-\left(-2\right) a-2-\left(-2\right)=-2\sqrt{3}-\left(-2\right)
Add 2 to both sides of the equation.
a=2\sqrt{3}-\left(-2\right) a=-2\sqrt{3}-\left(-2\right)
Subtracting -2 from itself leaves 0.
a=2\sqrt{3}+2
Subtract -2 from 2\sqrt{3}.
a=2-2\sqrt{3}
Subtract -2 from -2\sqrt{3}.
a=2\sqrt{3}+2 a=2-2\sqrt{3}
The equation is now solved.
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