Question

What is the discriminant for the quadratic expression?


22x2 + 14x


A.
108

B.
284

C.
428

D.
196

Answer 1

your idea?

Answer 2

If you have a quadratic of the form \[ax^2+bx+c\] the discriminant is given by \[\Delta=b^2-4ac\] which you may recognize as the part under the square root sign in the quadratic formula.

Answer 3

a=22, b=14, and c=0
ax^2+bx+c=0