Question

Reward+Fan
show me steps in addition to answer. please help! ):
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Answer 1

Reorder the terms:
9 + 9x + x2 = 0

Solving
9 + 9x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + 9x + -9 + x2 = 0 + -9

Reorder the terms:
9 + -9 + 9x + x2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 9x + x2 = 0 + -9
9x + x2 = 0 + -9

Combine like terms: 0 + -9 = -9
9x + x2 = -9

The x term is 9x. Take half its coefficient (4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
9x + 20.25 + x2 = -9 + 20.25

Reorder the terms:
20.25 + 9x + x2 = -9 + 20.25

Combine like terms: -9 + 20.25 = 11.25
20.25 + 9x + x2 = 11.25

Factor a perfect square on the left side:
(x + 4.5)(x + 4.5) = 11.25

Calculate the square root of the right side: 3.354101966

Break this problem into two subproblems by setting
(x + 4.5) equal to 3.354101966 and -3.354101966.

Subproblem 1
x + 4.5 = 3.354101966

Simplifying
x + 4.5 = 3.354101966

Reorder the terms:
4.5 + x = 3.354101966

Solving
4.5 + x = 3.354101966

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4.5' to each side of the equation.
4.5 + -4.5 + x = 3.354101966 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + x = 3.354101966 + -4.5
x = 3.354101966 + -4.5

Combine like terms: 3.354101966 + -4.5 = -1.145898034
x = -1.145898034

Simplifying
x = -1.145898034

Subproblem 2
x + 4.5 = -3.354101966

Simplifying
x + 4.5 = -3.354101966

Reorder the terms:
4.5 + x = -3.354101966

Solving
4.5 + x = -3.354101966

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4.5' to each side of the equation.
4.5 + -4.5 + x = -3.354101966 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + x = -3.354101966 + -4.5
x = -3.354101966 + -4.5

Combine like terms: -3.354101966 + -4.5 = -7.854101966
x = -7.854101966

Simplifying
x = -7.854101966

Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {-1.145898034, -7.854101966}

So: Just enter one answer choice at a time into a calculator and it should equal to that answer above. :-)

Answer 2

how would i input it into the calculator? i currently only have a very basic one :-) @mangorox

Answer 3

I can do it for you, if you want me to?

Answer 4

@mangorox if you can please ): i really appreciate it

Answer 5

Ok, I'll do it right now :)

Answer 6

My calculator isn't working... :(...I'll tag some people over here to do it for you :) @Saphira_Shapiro can you help this person please?

Answer 7

Sure thing honey! :D

Answer 8

Let's see what I can do.

Answer 9

I use an algebra calculator, so hold on a sec.

9+9x+x(2)=0
I will try to solve your equation.

First you need to simplify both sides of the equation.
11x+9=0

Then add -9 to both sides
11x+9+−9=0+−9

11x=−9

(11x) (-9)
--- = ---
11 11

Divide both sides by 11 and you will get x. Basically just -9 / 11

Answer 10

@Fernandez555 DONE! :D

Answer 11

@Saphira_Shapiro ah wait, so is it A or C? );

Answer 12

Oh man, that is hard. I ...think....it is............ C... my guess *crossing fingers*

Answer 13

The square root of 5 is: 2.2360679775

2.2360679775 * 3 = 6.7082039325

Answer 14

Is that a plus sign in the picture @Fernandez555 ?

Answer 15

I am thinking its C

Answer 16

@Saphira_Shapiro it is. thank you so much!

Answer 17

YAY!!!!! :D *Happy Dance*