Solve for c: x^2-d = x (x-4) (c+x) x^2-d = (x-4) x (c+x) is equivalent to (x-4) x (c+x) = x^2-d: x (x-4) (c+x) = x^2-d Divide both sides by x (x-4): c+x = (x^2-d)/(x (x-4)) Subtract x from both sides: Answer: | | c = (x^2 - d) / (x(x-4)) - x
Solve for d: x^2-d = x (x-4) (c+x) Subtract x^2 from both sides: -d = x (x-4) (c+x)-x^2 Multiply both sides by -1: Answer: | | d = x^2 - x(x-4) (c+x)
