연립 방정식: 1, x 2 - 256 분 의 81 = 0 2, (x + 2) 2 = 289 3, 4 (x + 1) 2 - 25 = 0 4, 4 (2x + 3) 2 = (- 3) 2

연립 방정식: 1, x 2 - 256 분 의 81 = 0 2, (x + 2) 2 = 289 3, 4 (x + 1) 2 - 25 = 0 4, 4 (2x + 3) 2 = (- 3) 2


1. x & # 178; - (81 / 256) = 0
x & # 178; = (81 / 256)
= 9 & # 178; / 16 & # 178;
x = ± 9 / 16
2. (x + 2) & # 178; = 289
x + 2 = ± √ 289
x = ± √ 289 - 2
3. 4 (x + 1) & # 178; = 25 = 5 & # 178;
(x + 1) & # 178; = 5 & # 178; / 2 & # 178;
x + 1 = ± 5 / 2
x1 = 3 / 2, x2 = - 7 / 2
4, 4 (2x + 3) & # 178; = 9
(2x + 3) & # 178; = 9 / 4
2x + 3 = ± 3 / 2
2x = 3 / 2 - 3, 2x = - 3 / 2 - 3
x1 = - 3 / 4, x2 = - 9 / 4