Ответы на вопрос:
4x^2-5x-6=0d = 25 + 4*4*6 = 121x1 = (5 - 11)/8 = -6/8 = -3/4x2 = (5+11)/8 = 16/8 = 2 2)-3x^2=x-3x^2 - x = 03x^2 + x = 0x(3x + 1) = 0x = 0; x = -1/3
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