What is the discriminant of the quadratic equation 2x + 5x2 = 1?

–18

–16

22

24

explain

The discriminant of the quadratic equation is:

                               24

Step-by-step explanation:

We know that for any quadratic equation of the type:

The discriminant of a quadratic function is denoted by D and is calculated by the formula:

Now here we are given a quadratic equation as:

which is written as:

i.e. we have:  a=5 , b=2 and c= -1

Now, the discriminant is calculated as:

              Hence, the discriminant is:

                             24

picture below

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right