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KOKOROO
@KOKOROO
July 2022
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x^2+9x+14=0 решите уравнение
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anmih
Verified answer
X² + 9 x + 14 = 0
D = 81 - 4 * 14 = 81 - 56 = 25 = 5²
x(1)
= (-9+5)/2 = -4/2 =
-2
x(2)
= (-9-5)/2 = -14/2 =
-7
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Answers & Comments
Verified answer
X² + 9 x + 14 = 0D = 81 - 4 * 14 = 81 - 56 = 25 = 5²
x(1) = (-9+5)/2 = -4/2 = -2
x(2) = (-9-5)/2 = -14/2 = -7