How many solutions are there to the equation 0 = 3x^2 - 10x - 5?
2 Answers
compare this equation with a
a= 3, b=-10, c=-5
Discriminant=
=
= 100+60
=160 which is more than 0
So it has two solutions.
Two
Explanation:
For a quadratic in the general form:
the discriminant
indicates the number of solutions:
In this case
so
Further, the discriminant is part of the quadratic formula that gives the actual solutions:
In this case