Question

Find the value of the discriminant for the equation 3x^2 - 2x + 7 = 0.



-84


-76


-80


-88

Answer 1

\[b^2-4ac\]
\[b=-2,c=7\]

Answer 2

oh and \(a=3\) compute
\[(-2)^2-4\times 3\times 7\]

Answer 3

let me know what you get

Answer 4

I got it wrong.. -336..

Answer 5

wow!!

Answer 6

\[4-84=-80\]

Answer 7

It could be the calc to be honest it's older than a whale

Answer 8

Thats what I did!

Answer 9

yikes
you are on a computer
put the calculator away
http://www.wolframalpha.com/input/?i=%28-2%29^2-4*3*7

Answer 10

Thank you.. :(

Answer 11

If the discriminant is -7, how many real number solutions does the quadratic equation have?


0


3


1


2

Answer 12

ok ok , I got 1 for this am I right?

Answer 13

@satellite73

Answer 14

hold on one sec

Answer 15

no you are not right
if the discriminant is negative there are no real solutions

Answer 16

so it's 0?

Answer 17

yes

Answer 18

Thank you.

Answer 19

yw