mikaylahubbard4 mikaylahubbard4
  • 13-12-2020
  • Mathematics
contestada

Use the discriminant to determine the number of real solutions to the quadratic equation.
- 4y^2 – 9y - 3 = 0
What is the number of real solutions?

Respuesta :

TakeItAllAway
TakeItAllAway TakeItAllAway
  • 13-12-2020
So the discriminant is 9^2 - 4*(-4)*(-3) which is equal to 33

Now the solutions are:

y = (9 - √33)/(-8) and y = (9 + √33)/(-8)
Answer Link
Xuser
Xuser Xuser
  • 13-12-2020

Answer:

2 real solutions

Step-by-step explanation:

D = b²-4ac

If D = 0 then 1 real solution

if D > 0 2 real solutions

if D < 0 no real solutions

a = -4

b = -9

c = -3

D = 81 - 48

D = 33

2 real solutions

Answer Link

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