(2 - x) 제곱 = 164 (x + 1) 제곱 - 25 = 0 x 제곱 - 2x + 1 = 3

(2 - x) 제곱 = 164 (x + 1) 제곱 - 25 = 0 x 제곱 - 2x + 1 = 3

(2 - x) 제곱 = 16
2 - x = ± 4
x = 2 ± 4
x1 = 6, x2 = - 2
4 (x + 1) 제곱 - 25 = 0
(x - 1) ^ 2 = 25 / 4
x - 1 = ± 5 / 2
x = 1 ± 5 / 2
x1 = 7 / 2 x2 = - 3 / 2
x 제곱 - 2x + 1 = 3
(x - 1) ^ 2 = 3
x - 1 = ± √ 3
x1 = 1 + √ 3
x 2 = 1 - √ 3