Intermediate Algebra (6th Edition)

x=-3±2i$\sqrt 2$
Original Equation (x+3)²+8=0 Subtract 8 from both sides (x+3)²=-8 Take the square root of both sides x+3=±$\sqrt -8$ Simplify the radical x+3=±2i$\sqrt 2$ Subtract 3 from both sides x=-3±2i$\sqrt 2$