How do you solve #x^2 + 12 = (x - 4)^2#?
First square the term on the right side, then combine like terms, and you'll get to
To solve this, we first need to square the
We can subtract
We can now subtract 12 from both sides (to move the constants to the right side of the equation - and we could have done both this and the last step as one but I broke it out for clarity):
Let's divide both sides by 8 to solve for x: