Add and simplify: x-3/x2(squared)-4+x-1/x(squared)-4x+4

[anm2007]

Add and simplify:

x-3/x2(squared)-4 + x-1/x(squared)-4x+4

 

[o_O]

It would be nice if you used brackets around your expressions so it'd be easier to read. But I think you mean:

\(\displaystyle \frac{x-3}{x^{2} - 4} + \frac{x-1}{x^{2} - 4x + 4}\)

What have you done so far? Anyway, start by factoring the denominators and show us your steps so we can help you out whenever you need it.

 

[anm2007]

It would be nice if you used brackets around your expressions so it'd be easier to read. But I think you mean:

\(\displaystyle \frac{x-3}{x^{2} - 4} + \frac{x-1}{x^{2} - 4x + 4}\)

What have you done so far? Anyway, start by factoring the denominators and show us your steps so we can help you out whenever you need it.

yes tahts what i mean....this is my first time using a forum like this and i dont know how to make my ractions look like how u do it. I have alredy factored out the denominators.

{x-3/(x+2)(x-2) } + {x-1 / (x-2) (x-2)}


now after that what do i do?

 

[o_O]

Sorry. I've got to run.

Look at the last example of this link at the bottom of the page. Getting the same denominator is really the trick here. Hope this helps!

 

[Denis]

{x-3/(x+2)(x-2) } + {x-1 / (x-2) (x-2)}

You are STILL not bracketing properly; should be:
(x-3) / {(x+2)(x-2)} + (x-1) / {(x-2) (x-2)}
Can you not ask someone in class to show you how to bracket properly?

 

[anm2007]

{x-3/(x+2)(x-2) } + {x-1 / (x-2) (x-2)}

You are STILL not bracketing properly; should be:
(x-3) / {(x+2)(x-2)} + (x-1) / {(x-2) (x-2)}
Can you not ask someone in class to show you how to bracket properly?

if u understand what i mean why cant u just help me with the question...fine ill get someone to help me with the bracketing... please tell me what to do next

 

[stapel]

if u understand what i mean why cant u just help me with the question...

Unfortunately, tutors have learned from experience that our first guesses "r" not "alwaz" "wut" "u" "meen". :roll:

In order better to assist, we ask that the students kindly post at least nearly as clearly as they demand we reply.

Thank you.

Eliz.

 

[anm2007]

if u understand what i mean why cant u just help me with the question...

Unfortunately, tutors have learned from experience that our first guesses "r" not "alwaz" "wut" "u" "meen". :roll:

In order better to assist, we ask that the students kindly post at least nearly as clearly as they demand we reply.

Thank you.

Eliz.

ok ok i understand. what do i do next?

 

[stapel]

what do i do next?

You've been given the fractions in factored-denominator form. Now find the least common denominator, convert the fractions to that denominator, and then combine.

Remember to factor the numerator of the result, and check to see if anything cancels. :wink:

Eliz.