Write the quadratic equation in general form. what is the value of b 2 - 4ac?

1 = 2x 2 + 7x

40
41
57

The value of b² - 4ac is  57

Step-by-step explanation:

To find the value of b² - 4ac in the equation;

1 = 2x² + 7x

We need to first rearrange the equation

2x² + 7x - 1 = 0 (1)

The general form of quadratic equation is;

ax² + bx + c = 0  (2)

Comparing  equation (1)  and equation (2)

a =2            b=7    and c= -1

We are ask to find b² - 4ac

Substitute the values into b² - 4ac

b² - 4ac = 7² -(4)(2)(-1)

            =49 +8

              =57

Therefore, the value of b² - 4ac is  57