Question

Which of the following is a solution of 4x^2 = - 9x - 4?

Answer 1

9 plus or minus the square root of 17 divided by 8.
negative 9 plus or minus the square root of 145 divided by 8.
9 plus or minus the square root of 145 divided by 8.
negative 9 plus or minus the square root of 17 divided by 8

Answer 2

x =(-9-√17)/8=-1.640
x =(-9+√17)/8=-0.610

Answer 3

Wolframalpha.com is better ;)

Answer 4

ill check it out thx

Answer 5

need help? ^_^

Answer 6

yes i do need help :)

Answer 7

is that a negative 9 or subtract 9?

Answer 8

like i just gave you 2 possible solutions!! xD

Answer 9

negative 9

Answer 10

#DeadPool117 Ftw
He gave a direct answer but still...

Answer 11

yea :3

Answer 12

Try explaining though :D
I might have to write you up ;)

Answer 13

ready for the steps @Gabylovesyou

Answer 14

@Deadpool117 yes please explain

Answer 15

Ok ill explain...

Answer 16

yes @just_one_last_goodbye

Answer 17

1. Simplify -4x2-9x - 4

Answer 18

#1 subtract (-9x -4) from both sides

Answer 19

-4x2 - 9x - 4 = -1 • (4x2 + 9x + 4)

Answer 20

The second step can be followed in 2 way either completing the square or Quadratic Formula.

Answer 21

let her explain, its kindof hard to...

Answer 22

@Gabylovesyou please choose ^_^

Answer 23

@Deadpool117 im a guy o-o

Answer 24

O_O.......

Answer 25

"My little brony all dressed in sexy" c;

Answer 26

xD

Answer 27

I lost 11 fans :O

Answer 28

@Gabylovesyou let just do squaring ^_^

Answer 29

after the first step this is what our problem should look like now\[4x^2 + 9x +4 =0\]

Answer 30

ok for step 2, what is easier ?

Answer 31

well squaring is easier ^_^

Answer 32

ok then squaring :)

Answer 33

Ok next step is dividing both sides by 4

Answer 34

how do i do that ..

Answer 35

@just_one_last_goodbye

Answer 36

sorry i was in a Live Lesson

Answer 37

@just_one_last_goodbye Don't worry :)

Answer 38

Do you know where I got the 4 from or no?

Answer 39

cuz of 4x^2 ?

Answer 40

yes correct ^_^

Answer 41

so when you divide both sides by 4 you get\[x^2 + \frac{ 9x }{ 4 } +1 = 0\]

Answer 42

ok.. :)

Answer 43

Then subtract 1 from both sides \[x^2 +9\ \frac{ 9x }{ 4 } =-1\]

Answer 44

ok

Answer 45

._. seems like OS doesn't have this but its a triple fraction

Answer 46

Add \[(9/4/2)^2\] to both sides

Answer 47

^after that you'll get this\[x^2 +\frac{ 9x }{ 4 } +\frac{ 81 }{ 64 } = \frac{ 17 }{ 64 }\]

Answer 48

ok

Answer 49

@Gabylovesyou @just_one_last_goodbye ya'll are cute

Answer 50

I am cute too D:
Don't forget me ;-;

Answer 51

@undeadknight26 yes you are

Answer 52

@jeremydaigle101 Thanks hun ^-^

@undeadknight26 Why yes, yes u r ;p

Answer 53

@Gabylovesyou you are welcome

Answer 54

XD <3
Your cuter ;)

Answer 55

me?

Answer 56

how old are ya'll i am 15

Answer 57

What is the solution of this system of linear equations?

http://media.education2020.com/evresources/2003-11-01-00-00_files/i0230000.jpg
A.
(1, 0)
B.
(0, 0)
C.
(0, 1)
D.
x = 0

Answer 58

help me please

Answer 59

can you help?