Question

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

Answer 1

Answer:

D = 141

Step-by-step explanation:

The given quadratic equation is

$5x^2+9x=3\\\\5x^2+9x-3=0$.

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

$D=b^2-4ac$

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

On plugging all the values, we get :

$D=(9)^2-4\times 5\times (-3)\\\\D=141$

So, the value of discriminant for y is 141.