Question

How many solutions are there for 5x^2 + 7x - 4 = 0?
a.) 0
b.) 1
c.) 2
d.) 3
I'm pretty sure it's C, but I just wanna make sure. Thanks (:

Answer 1

Correct :)

Answer 2

not incorrect (:

Answer 3

Find the Discriminant D = b^2 - 4ac = 49 + 80 = 129 > 0.
When D > 0 ->There are 2 real roots.
When D = 0 -> There is double root
When D < 0 -> There are no real roots.