Question

What is the value of the discriminant for the quadratic equation 2x2 - 3x + 1 = 0?

1

-17

-1

-15

Answer 1

\[b^2 - 4ac\]
\[b^2 - 4ac = (-3)^2 - 4(2)(1)\]

Answer 2

then continue..

Answer 3

\[(-3)^2 - 4(2) (1) = 9 - 8 = 1 \]

Answer 4

Any questions?
so you use \[b^2 - 4ac\]

Answer 5

No, thank you!