Mathematics
Junior High
Resolved
計算ミスはどこか教えて下さい！
(x - 1)(x-4)= x + 12
x 5272
x² - 6x -8-
x =
x+12
6.土 36 +32
LO
X = 6 ± √√√ 68
2
6±2個
2
- 1 -
12
4/6€
3±2個
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6と2√17も約分するんすね…