Question

Given the trinomial 2x2 + 4x − 2, what is the value of the discriminant?

Answer 1

2x^2+4x-2

Answer 2

For the trinomial \(ax^2+bx+c\) the discriminant is \(b^2-4ac\)
Can you pick out the values for a, b, and c from your trinomial?

Answer 3

4^2-4(2)(-2)?

Answer 4

yes

Answer 5

would be 32 right? 4^2=16 then -4*2=-8
-8*-2=16 then 16+16=32

Answer 6

right

Answer 7

thank you! they didn't have that formula in the lesson made it easier.

Answer 8

you're welcome