Question

Use the discriminant to determine the number of real roots for the equation 5x2 −19x − 4 = 0.

discrminant :
number of real roots:

Answer 1

Explanation:

5x² - 19x - 4

use the discriminant formula

D = b² - 4ac

label the coefficients

5 = a -19 = b -4 = c

D = -19² - 4(5)(-4)

D = -281

since the discriminant is negative this eqaution ahs no real solutions