All I did is multiply both sides of this by square root of four c minus three to get rid of this in the denominator. And so, let's see, now to get rid of the radical, we can square both sides. And so, actually let me just show that. So now we can square both sides. So we get four is equal to four c minus three. Add three to both sides. Seven is equal to four c. And then divide both sides by four.