Find the discriminant of the polynomial below. 4x2 - 20x + 25?

Question

asked Mar 14, 2019 87.7k views

2 Answers

Prashant Arvind · Answer 1 · 2019-03-20T03:22:12+0000

Answer:

b² - 4ac = 0

Explanation:

given a quadratic in standard form : ax² + bx + c : a≠ 0

the discriminant Δ = b² - 4ac

4x² - 20x + 25 is in standard form

with a = 4, b= - 20 and c = 25

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