Question

given the trinomial 3x^2-6x+5, what is the value of the discriminant?

Answer 1

the discriminant comes from the general quadratic formula

it is

\[\Delta = b^2 -4ac\]

so looking at the coefficients in your question

a = 3, b = -6 and c = 5


just substitute and evaluate

Answer 2

no i wrote the problem exactly like it said. the answer choices were: A= -66, B= -24, C= 8, D= 96 @campbell_st

Answer 3

so what answer did you get when you substituted

\[\Delta = (-6)^2 - 4 \times 3 \times 5\]

Answer 4

-600? @campbell_st

Answer 5

not quite do you know what

\[(-6)^2 = ?\]

it can be written as

-6 x -6 =

Answer 6

yeah its 36

Answer 7

so what is 36 - (4 * 3 * 5) =

Answer 8

oh ok its -24. your awesome:)

Answer 9

glad to help...