Question

What is the discriminant of the polynomial below?

4x2 - 20x+ 25
O A. -360
O B. o
O C. 300
O D. -20

Answer 1

B. 0

Explanation:

ax² + bx + 1 = 0

discriminant = b² - 4ac

4x² - 20x + 25

a = 4

b = -20

c = 25

b² - 4ac = (-20)² - 4(4)(25) = 400 - 400 = 0

Answer: B. 0