Question

3x2-15x=0 дискрименант

Answer 1

3x²-15x=0
D=-6²-4•3•0
D=36-0
D=36
X1=-6-√36/2•3=-6-6/6=-12/6=-2
X2=-6+√36/2•3=-6+6/6=0

Answer 2

To find the discriminant of a quadratic equation, you can use the formula:

Discriminant (D) = b^2 - 4ac

Given the quadratic equation 3x^2 - 15x = 0, we can identify the coefficients as follows:

a = 3 b = -15 c = 0

Now, we can substitute these values into the discriminant formula:

D = (-15)^2 - 4 * 3 * 0

Simplifying further:

D = 225 - 0

D = 225

Therefore, the discriminant of the quadratic equation 3x^2 - 15x = 0 is 225.