Question

For this quadratic equation, what is the value of *

2x² + 3x – 6
b2 - 4ac;
O 51
O 64
O 57
O-39

Answer 1

b² - 4ac = 57

Explanation:

To find the value of b² - 4ac

we first need to know the values of a b and c

comparing the quadratic equation given 2x² + 3x – 6 and the standard quadratic equation ax² + bx + c

we will see that

a = 2 b = 3 and c = -6

b² - 4ac = 3² - 4(2)(-6)

=9 + 48

=57

b² - 4ac = 57