Question

Without determining the roots,comment on nature of roots of following equations
25x^2+20x+4=0​

Answer 1

Answer:

nature of roots are real and equal

Answer 2

This can be done by finding what the discriminant value is.

D = b^2 - 4ac

a = 25, b = 20, c = 4

D = 20^2 - 4(25)(4)

D = 400 - 400

D = 0

Since D = 0, the roots are real and equal (mentioned in the book)