# Math Help - Solve

1. ## Solve

I cant seem to find a way to actually find any solutions to this....any suggestions?

$3/(x^2+x)-1/(x+5)=0$

2. Originally Posted by EliteCore
I cant seem to find a way to actually solve this....any suggestions?

$3/(x^2+x)-1/(x+5)=0$
Where are you stuck at? its easy.

$\frac{a}{b} - \frac{c}{d} = \frac{(a\times d) - (b \times c)}{b \times d}$

3. Originally Posted by harish21
Where are you stuck at? its easy.

$\frac{a}{b} - \frac{c}{d} = \frac{(a\times d) - (b \times c)}{b \times d}$

Then I get this:

$(3(x+5)-x(x+1))/((x^2+x)(x+5))$

can I go any further?

4. Originally Posted by EliteCore
Then I get this:

$(3(x+5)-x(x+1))/((x^2+x)(x+5))$

can I go any further?

now expand the numerator by multiplying the terms

5. Now expand the numerator and group like terms.

6. If numerator / denominator = 0, then numerator = 0

7. is $(-(x-5))/(x(x+2))$

8. Originally Posted by EliteCore
is $(-(x-5))/(x(x+2))$

NO.

$\frac{3(x+5)-x(x+1)}{(x^2+x)(x+5)}$ is what you had gotten.

according to your question, this term = 0, so you have,

$\frac{3(x+5)-x(x+1)}{(x^2+x)(x+5)} = 0$

Look at what Wilmer has said in the post above. That gives you:

$3(x+5)-x(x+1) = 0$

$3x+15-x^2-x=0$

$2x+15-x^2=0$

$x^2-2x-15=0$

Solve this quadratic equation for the value of x!