What value should you add to each side of the equation? x^2+16x=-8 10/22/2013 | David from Melbourne, FL | 1 Answer | 0 Votes Mark favorite Subscribe Comment
x^{2 }+16x = -8 Add 64 to both sides: x^{2} + 16x + 64 = -8 + 64 Factor and simplify: (x + 8)^{2} = 56 Use the square root method: x + 8 = ± √(56) Subtract 8 from both sides: x = -8 ± √(56) 10/22/2013 | James H. Comment