F (x) = - 7x^2+8x+2 what is the value of the discriminant of f

120

Step-by-step explanation:

The discriminant can be written as an expression: b² - 4ac.

We know that a = - 7, b = 8, c = 2, since the function f (x) = - 7x² + 8x + 2 is in standard form: ax² + bx + 2.

Now let's evaluate the discriminant:

b² - 4ac

= 8² - 4 (-7) (2) (Simplify)

= 64 - 4 (-14)

= 64 + 56

= 120

D = 120, there are 2 real roots for F (x)

Step-by-step explanatU

using the

formula D = b^2 - 4ac for discriminant

D = 8^2 - 4 * (-7) * 2

D = 64 + 56 = 120