How many real solutions are there for the following equation?

0=12x2+x−1
a
0

b
3

c
2

d
1

two real solutions (Answer C)

Step-by-step explanation:

You can study the discriminator of this expression to find your answer.

Recall that the discriminator of a quadratic equation of the form: is:

So for this equation,

Therefore, the discriminator gives: which is larger than zero.

This tells us that the equation has two real solutions.

The answer is

25-18÷(3×2)=22