Question

4x²-16x+7=0 дискриминантом​

Answer 1

Ответ:

x1=3,x2=1,5

Объяснение:

D=b^2-4ac

D=(-16)^2-4*4*7=256-112=144

x1=-(-16)+корень из 144/2*4=16+12/8=28/8=3

x2=-(-16)-корень из 144/2*4=16-12/8=4/8=1/2=1,5

Answer 2

To find the discriminant of a quadratic equation in the form of ax^2 + bx + c = 0, you can use the formula:

Discriminant (Δ) = b^2 - 4ac

In your equation, 4x^2 - 16x + 7 = 0, the coefficients are: a = 4 b = -16 c = 7

Now, plug these values into the formula:

Δ = (-16)^2 - 4 * 4 * 7 Δ = 256 - 112 Δ = 144

So, the discriminant is 144.