Algebra Question help!?

Question

Solve for x:

- 7 / x + 2 + x+2 = 0

Thanks so much! Tryin' to check my answers and i'm not real sure about this one

Answer 1

(-7/x) + 2 + x + 2 = 0

(-7/x) + x + 4 = 0

multiply both sides by x

-7 + x^2 + 4x = 0

x^2 + 4x - 7 = 0

since you cannot cleanly factorise x, you have to use the general quadratic equation

(x+sqrt(11)+2 )*(x - sqrt(11)+2)

x= sqrt(11)-2 or x= -sqrt(11)-2

Answer 2

hmm I'm not sure what the eqn is...

If it's -7/(x+2) + x+2 = 0, then:
-7 + (x+2)^2 = 0 >>> multiply by x+2
x^2 + 4x -3 = 0 >>> expand and combine like terms
Now just use the quadratic formula.

But if it's -7/(x) + 2 + x + 2 = 0
-7 + 2x + x^2 + 2x = 0 >>>multiply by x
x^2 + 4x - 7 = 0 >>> combine like terms
Then use the quadratic forumula

Answer 3

Multiply the first side by x to get rid of the fractions:
-7+2x+x^2+2x=0
x^2+4x-7=0

Next, you the quadratic formula:
x=-b±√b^2-4ac/2a
a=1,b=4,c=-7
x=-4±√(4)^2-4(1*-7)/2(1)
Now, you're ready to solve this!

Answer 4

-7/x + 2 + x + 2 = 0
Muliply by X
-7 +2x + x**2 +2X = 0
x**2 + 4x -7 = 0

This does not have integer factors - are you sure the problem is stated correctly?

Answer 5

by -7/x I assume you mean negative 7 over x.

Or

did you mean -7 is over x+2+x+2?

You should rewrite the question, because I have no idea what you are talking about.

Answer 6

x= -2(+or-) the square root of 11