Укажите коэффициенты квадратного уравнения.
1) 2x² - 5x + 1 = 0
A = ?; B = ?; C = ?
2) 5x² + x - 11 = 0
A = ?; B = ?; C = ?
3) x² - 7x = 0
A = ?; B = ?; C = ?
4) x² + 5 = 0
A = ?; B = ?; C = ?
1) 2x² - 5x + 1 = 0
A = ?; B = ?; C = ?
2) 5x² + x - 11 = 0
A = ?; B = ?; C = ?
3) x² - 7x = 0
A = ?; B = ?; C = ?
4) x² + 5 = 0
A = ?; B = ?; C = ?
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Ответ:
1. а = 2 ; b = -5 ; c=1
2. a= 5 ; b= -1 ; c= -11
3. a=-1 ; b=7 ; c=0
4. a=-1 ; b= 0 ; c=5