DisneyGirl11
10.01.2020 •
Mathematics
X2 – 12x + 27 = 0 solutions: x = and x =
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Ответ:
Step-by-step explanation:
x² – 12x + 27 = 0
x² –9x -3x + 9*3 = 0
x(x-9) -3(x -9) = 0
(x-9)(x-3) = 0
x - 9 = 0 ; x - 3 = 0
x = 9 ; x = 3
x = 9 or 3
Ответ:
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