compute the value of the discriminant and give the number of

compute the value of the discriminant and give the number of real solutions:

4x^2+9x-4=0

Solution

Real solutions

4x^2+9x-4=0

here a = 4 , b = 9 , c = -4

for  discriminant = b^2 - 4ac

= 9^2 - 4(4)(-4)

= 81 + 65

= 146

146 is positive there by it gives two real solution .

Answer