Ответ:
1)D = 6^2 - 5*4*1 = 36 - 20 = 16
x1 = (-(-6) - 4)/2 = 1
x2 = (-(-6) + 4)/2 = 5
2)D = 7^2 - 8*(-1)*4 = 49 - (-32) = 81
x1 = (-7 - 9)/(-2) = 8
x2 = (-7 + 9)/(-2) = -1
Объяснение:
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Verified answer
Ответ:
1)D = 6^2 - 5*4*1 = 36 - 20 = 16
x1 = (-(-6) - 4)/2 = 1
x2 = (-(-6) + 4)/2 = 5
2)D = 7^2 - 8*(-1)*4 = 49 - (-32) = 81
x1 = (-7 - 9)/(-2) = 8
x2 = (-7 + 9)/(-2) = -1
Объяснение: