4x^2 + 4x - 3 = 0;
D = b^2 - 4ac = 16 - 4 * 4 * (-3) = 16 + 48 = 64;
x1 = (-4 + 8)/2 * 4 = 4/8 = 1/2;
x2 = (-4 - 8)/2 * 4 = -12/8 = -1.5.
ответ: -1.5.
4x^2 + 4x - 3 = 0;
D = b^2 - 4ac = 16 - 4 * 4 * (-3) = 16 + 48 = 64;
x1 = (-4 + 8)/2 * 4 = 4/8 = 1/2;
x2 = (-4 - 8)/2 * 4 = -12/8 = -1.5.
ответ: -1.5.