Question

Find the value of the discriminant and describe the number and type of roots.
3x2 - 8x + 2 = 0

Answer 1

Quadraticc :P

Answer 2

6 and 2??????

Answer 3

6 and 2? :O

Answer 4

4 and 2

Answer 5

i was adding

Answer 6

is u times 4 * -2 = -8 and then if u add 4 + -2 = 2

Answer 7

i see

Answer 8

so your roots r -4 and 2

Answer 9

did u understand this @jazzyfa30

Answer 10

Discriminant of Quadratic formula is
under root b^2 -4ac

Answer 11

yes

Answer 12

k :)

Answer 13

a :3
b:-8
c:2

Answer 14

Put the values in that and solve it to find the discriminant.

Answer 15

yeah u can find the discriminant using the quadratic formula. uri is right

Answer 16

ummmm uri whats the formula

Answer 17

its on the top

Answer 18

discriminant= b² − 4ac

Answer 19

b^2 -4ac
-8^2-4(3)(2)
-8^2-24
64-24
=40

Answer 20

??????

Answer 21

u r wrong

Answer 22

awwwwwww

Answer 23

how??????

Answer 24

wht do u mean how?

Answer 25

i solved it in detailed

Answer 26

i know that i mean what did i get wrong i thought you are suppose to multiply 4(3)(2) all at th same time

Answer 27

@jazzyfa30
a =3
b=-8
c =2
Alright?
And the formula for dicriminant is
b2 -4ac
B is 8 so (8)2 - 4 then a =3 so (3) and c is 2 so (2)
That is -8^2 -4(3)(2)
then -(8)^2 =64 -4*3*2
So,64 -24
40 is the answer.

Answer 28

dont u guys have calculators ?

Answer 29

Rane you're doing it wrong,-8^2 =64 not -64 because - 8 x-8 =64.

Answer 30

@uri -8^2 = -64 not 64

Answer 31

use your calculator if u arent sure

Answer 32

the answer is -88

Answer 33

@jazzyfa30

Answer 34

thats wht i have been saying

Answer 35

i got a +64 and i put it in the calc

Answer 36

did u put -8^2

Answer 37

no -8*-8 its the same thing

Answer 38

no its not @jazzyfa30

Answer 39

thats just simple calculation guys

Answer 40

technically it is because when you square sumething you just multiply it by itself

Answer 41

but on with the Q please

Answer 42

the answer is -88 use your calculator

Answer 43

ok thanks

Answer 44

Well the answer is 40,Jazzy

Answer 45

wht?

Answer 46

but thats not an answer chose
choses:
D=1, two rational roots
D=40, two rational roots
D=-47, two complex roots
D=289, rational roots
D=289, irrational root
D=0,one doubled root
D=0,two complex root

Answer 47

thank u uri i knew i was right

Answer 48

how do u guys get 40?

Answer 49

i did my work correctly

Answer 50

x2 - 8x +16 = 0

Answer 51

@jazzyfa30 one question at a time,damn

Answer 52

i know u r already wrong in the ist q' jazzy and now u want to jump to the other q'

Answer 53

lol sorry im trynna gt this ish over lol uri and gold is mine

Answer 54

Close this thread,ask in a new one.

Answer 55

im not wrong i posted my choses and 40 was on there not -88

Answer 56

well how did u get 40 then?