Question

find the nature of the roots of x² - 3x -20=0

Answer 1

apply b^2-4ac
-3^2-4*1*-20
9+80
=89 is greater than 0
so the roots are real and distinct.
                                              merry chistmas

Answer 2

Here,
b2 - 4ac=9+80
            =89
which is greater than 0.
So it has two real distinct roots
SAY THANKS PLS