2.31. Решите уравнение:
1) 2x^2 + 3x + 1 = 0;
3) 4x^2 + 4x + 1 = 0;
2) 2x^2+ x +2=0;
4) x² + 5x – 6=0.
1) 2x^2 + 3x + 1 = 0;
3) 4x^2 + 4x + 1 = 0;
2) 2x^2+ x +2=0;
4) x² + 5x – 6=0.
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Answers & Comments
1) х1=-0.5; х2=-1
3) х1=(-4+√8) /8; х2=(-4-√8) /8
2) не имеет решения
4) х1=1; х2=-6