oliviaszymanski06
oliviaszymanski06 oliviaszymanski06
  • 19-05-2020
  • Mathematics
contestada

Question 3
State the value of the discriminant of 5x2 + 9x = 3.
a) 21
b) 12
c) 141
d) 5

Respuesta :

PhantomWisdom PhantomWisdom
  • 24-05-2020

Answer:

D = 141

Step-by-step explanation:

The given quadratic equation is

[tex]5x^2+9x=3\\\\5x^2+9x-3=0[/tex].

It is required to find the value of the discriminant. The value of discriminant  of any quadratic equation is given by :

[tex]D=b^2-4ac[/tex]

Here, a = 5, b = 9 and c = -3

On plugging all the values, we get :

[tex]D=(9)^2-4\times 5\times (-3)\\\\D=141[/tex]

So, the value of discriminant for y is 141.

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