Ответ:
Пошаговое объяснение:
1. x(1/5 - 25x) = 0
x1 = 0
x2 = 1/125
2. x(3 - 2/5x) = 0
x2 = 15/2 = 7,5
3. x² = 4
x1 = -2
x2 = 2
4. 5x² = 8
x² = 1,6
x1 = -√1,6
x2 = √1,6
5. D = 49 - 40 = 9
x1 = (-7 - 3)/2 = -5
x2 = (-7 + 3)/2 = -2
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Verified answer
Ответ:
Пошаговое объяснение:
1. x(1/5 - 25x) = 0
x1 = 0
x2 = 1/125
2. x(3 - 2/5x) = 0
x1 = 0
x2 = 15/2 = 7,5
3. x² = 4
x1 = -2
x2 = 2
4. 5x² = 8
x² = 1,6
x1 = -√1,6
x2 = √1,6
5. D = 49 - 40 = 9
x1 = (-7 - 3)/2 = -5
x2 = (-7 + 3)/2 = -2