Solve for x:
x^2+196 = (x+2)^2
Expand out terms of the right hand side:
x^2+196 = x^2+4 x+4
Subtract x^2+4 x+4 from both sides:
192-4 x = 0
Factor constant terms from the left hand side:
-4 (x-48) = 0
Divide both sides by -4:
x-48 = 0
Add 48 to both sides:
Answer: | x = 48
