Solve x 2 - 8x + 3 = 0 by completing the square. Which equation is used in the process? A. ( x - 4) 2 = 0 B. ( x - 4) 2 = 11 C. ( x - 4) 2 = 13 D. ( x - 4) 2 = 19
gruop x terms (x²-8x)+3=0 take 1/2 of linear coefient and square it -8/2=-4, (-4)^2=16 add negative and positive inside (x²-8x+16-16)+3=0 factor perfect square ((x-4)²-16)+3=0 expand (x-4)²-16+3=0 (x-4)²-13=0 add 13 both sides (x-4)²=13
