Question 37220
At first you must put the last number in the other side of the equation, so we get:

4x^2-48=0,  4x^2=48

Now we divide by 4 in both side of the equations and we get:

4x^/4=48/4, and then we get, x^2=12, now and to finish we have to get the square root of 12.

{{{x=sqrt(12)}}}
{{{x=sqrt(4*3)}}}  And now taking out the for of the square root we get
{{{x=2sqrt(3)}}} The solution of the equation.