Question

What is the discriminant of the polynomial below 4x^2-20x +25

Answer 1

Answer:

The discriminant D=0

Step-by-step explanation:

For the duadratic polynomial $ax^2+bx+c$ the discriminant is

$D=b^2-4ac.$

In your case, for the polynomial $4x^2-20x+25,$

• $a=4;$
• $b=-20;$
• $c=25;$
• $D=(-20)^2-4\cdot 4\cdot 25=400-400=0.$