shartman22
18.02.2020 •
Mathematics
Solve n^2-6n=72 by completing the square
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Ответ:
-6 & 12
Step-by-step explanation:
[n² - 2(n)(3) + 3²] - 3² = 72
(n-3)² - 9 = 72
(n-3)² = 81
(n-3) = +/- 9
n-3 = 9 n = 12
n-3 = -9 n = -6
Ответ:
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
Step-by-step explanation: