Question

-x^2-2x+24=0

Answer 1

-x^2-2x+24=0

Answer 2

someone please help me

Answer 3

U can think that a=-1, b=-2, c=24 ok

Answer 4

Now, we star u solve the problem

Answer 5

With that problem we will have x always gives 2 answers

Answer 6

i dont know how to work it out, i miss class for a week so i dont have any notes

Answer 7

1) X=( -b + square delta T) /2a, 2) x= -b - square delta T ) / 2 a , so u will get can answer. U find delta T by the way b ^2-4ac

Answer 8

U do understand ?

Answer 9

use quadratic equation. do you know how to use it?

Answer 10

no im highly confused, could u just break it down for me

Answer 11

Can you factor it?

Answer 12

you could and leave the negative sign on the outside

Answer 13

nooo i dont think you can.....

Answer 14

no i have to solve it

Answer 15

You could do this thing:

-x² - 2x + 24 = 0
-(x² + 2x - 24) = 0
x² + 2x - 24 = 0

Now you can factor it easily. Is this clear?

Factoring it is faster way to solve. Faster than using quadratic equation.

Answer 16

You know how to factor? No?

Answer 17

Ok let me right it down for u to easy understand

Answer 18

Ok let galacticwaves xx did it

Answer 19

\[x=\frac{ -b \pm \sqrt{b^2-4ac} }{ 2a}\]

and you know that \[ax^2+bx+c=0\]

from the 2nd equation you can tell by looking at your problem what a, b, and c is

Answer 20

Exactly what I said, good jobs men

Answer 21

i still need help

Answer 22

now what you have to do is plug in a, b and c into the 1st equation i put up above

haha thank you as long as we speak the same language we succeed

Answer 23

@jkjk1 now can you do that and let me see what you get for x

Answer 24

i cant i really need help

Answer 25

hmmm ok i will first tell you that a=-1 b=-2 and c=24

you can see how i go this from the 2nd equation i posted up, correct?

Answer 26

could u give me the answer, i have to go to class at 6:30

Answer 27

???

Answer 28

then from plug in the values of a, b, and c onto the quadratic equation which is the 1st equation i posted up

\[x=\frac{ -(-2) \pm \sqrt{(-2)^2-4(-1)(24)} }{ 2(-1) }=\frac{ 2 \pm \sqrt{4+96} }{ -2 }=\frac{ 2 \pm \sqrt{100} }{ -2 }\]

Answer 29

and you get x=-6 and x=4

Answer 30

You would be grateful if you know how to factor; in this way you don't have to do all these work lol...

Answer 31

He can u factor geeky, can u tell ur way?

Answer 32

let me see how you can factor this out because i don't think it is possibl