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

b² - 4ac = 0

Step-by-step 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