1)4x^2-5x-6=0 2)-3x^2=x 3)4x-1/3-3x+2/6=1 решите уравнения

4x^2-5x-6=0

D = 25 + 4*4*6 = 121

x1 = (5 - 11)/8 = -6/8 = -3/4

x2 = (5+11)/8 = 16/8 = 2

2)-3x^2=x

-3x^2 - x = 0

3x^2 + x = 0

x(3x + 1) = 0

x = 0; x = -1/3