Question

Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. (2 points)

−b b2 − 4ac 2a

Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation:

2x2 + 7x + 3 = 0

Answer 1

First I have to find x right?

Answer 2

To start off, do you know what a discriminant is?

Answer 3

wot

Answer 4

`"discriminant"`

Answer 5

what's that @_@

Answer 6

I'm sorry, i'm not good at math lol

Answer 7

its ok, the discriminant is basically b^2 − 4ac in the quadratic formula

Answer 8

are u familiar with the `quadratic formula`

Answer 9

alr, lets get started then ...

Answer 10

I basically gave u the answer for the first part lol mb

What do u think the answer is for the first part?

Answer 11

Don't I have to find x?

Answer 12

I thought you had to find x to do that lol

Answer 13

mb

Answer 14

So, I looked up the answer earlier, but like I wanna know how it like get's that answer

Answer 15

nah- so we know our equation is \[2x^2 + 7x + 3 = 0\]

Do you know how to find the a, b, and c so that we can use the formula \[b^2 − 4ac\]

Answer 16

I'm assuming it's like 2x^2 is a and 7x is B and so fourth?

Answer 17

I'm sorry if i'm wrong lol

Answer 18

yessss, that's correct, but we dont use the x values, we just put the numbers so it would look like this \[7^2 − 4(2)(3)\]

Answer 19

I'm honestly trying to learn lol

Answer 20

ohhhhh

Answer 21

I thought i was wrong ngl

Answer 22

lol, ur doing amazing, now can you solve the problem?

Answer 23

so like

Answer 24

48?

Answer 25

try it and I'll tell u if its right :)

Answer 26

48?

Answer 27

well, whats 7x7

Answer 28

49

Answer 29

i gotta study more in math lol

Answer 30

correct, now whats 4x2x3

Answer 31

16

Answer 32

not really, whats 2 x 3

Answer 33

6

Answer 34

I did my math wrong

Answer 35

I did 8 twice instead of 3 times

Answer 36

now whats 6x4?

Answer 37

24

Answer 38

i'm honestly mad at myself for that mistake lol

Answer 39

i'm honestly mad at myself for that mistake lol

Answer 40

right now we do 49-24?

Answer 41

25

Answer 42

correct now imma gonna attach a pic one sec...

Answer 43

alr

Answer 44

So, is 25 less than, greater than, or equal to 0?

Answer 45

greater than

Answer 46

so based on the pic, how many solutions will there be? or to reword it, how many times will the parabola pass the x-axis

Answer 47

twice

Answer 48

oh thank you

Answer 49

np

Answer 50

30 minutes and 54 replies later, I learned something new

Answer 51

lol

Answer 52

Have a good day/night, and I hope you do good on your finals mate

Answer 53

wait what o-o

Answer 54

Ye @_@

Answer 55

ignore the fact I looked up 49-24

Answer 56

I didn't know there was a calculator on here

Answer 57

the final answer isnt 2 ;-;

Answer 58

Ok so you said there was 2 solutions and you said that was the answer

Answer 59

So i put two as in that's how many solutions there are

Answer 60

Was i not supposed to?

Answer 61

noooo, im sorry if I worded it wrong lol- the final answer is 25

Answer 62

Lol

Answer 63

bc yk 49-24 = 25

Answer 64

im so so so sorry :(

Answer 65

it's fine, i'll figure it out tomorrow, thanks for the help btw

Answer 66

i'll ask you if I need anymore help if you're free

Answer 67

ok :)

Answer 68

anyways, if my teacher asks I can give her how we solved the solution and just say my keyboard messed up lol

Answer 69

lol alr