2x^2+ 3 = 3 – 7x
2x^2+ 7x = 0
D =7^2 – 4 * 2 * 0 = 49
D> 0 тогда x1. X2
X1 =(-7^2 – 49^1/2) / (2 * 2) = -14/4 = - 3.5
X2 =(-7^2 + 49^1/2) / (2 * 2) = 0
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x = 0
x = -7\2
2x^2+ 3 = 3 – 7x
2x^2+ 7x = 0
D =7^2 – 4 * 2 * 0 = 49
D> 0 тогда x1. X2
X1 =(-7^2 – 49^1/2) / (2 * 2) = -14/4 = - 3.5
X2 =(-7^2 + 49^1/2) / (2 * 2) = 0
2x^2 + 7x = 2 * (x + 3.5) * x