(1) X² - 2x – 13 = 0 A) X² - 2x = 13 B) 4x ^ 2 – 8x = 52 C) 4x ^ 2 – 8x + 4 = 56 D) √ (4x ^2-8x+4) = ± √ 56 E) 2x-2 = √ 56 then x = (2 + √56) / 2 = 1 … Read more