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Math Algebraic fraction help please!!!

Heyy i was wondering of someone could help me out on this??
I'm doing corrections and literally can't seem to work this out:

(x+a) - (x+c)
(x-b) - (x+d)

Any help would be amazing!! Thankyou :smile:
Original post by SoDoneWithSchool
Heyy i was wondering of someone could help me out on this??
I'm doing corrections and literally can't seem to work this out:

(x+a) - (x+c)
(x-b) - (x+d)

Any help would be amazing!! Thankyou :smile:


Have you tried making sure each fraction has the same denominator?

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Original post by Matrix123
Have you tried making sure each fraction has the same denominator?

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Omg heyyy!! I saw your last post a bit too late of the #southie's convo:colondollar: I'm finishing GCSE's btw. In reply to that!!:biggrin:

Annnd girll my mind is fuggled up rn. I tried but it didn't look right?

It was like x squared bd??
Original post by SoDoneWithSchool
Omg heyyy!! I saw your last post a bit too late of the #southie's convo:colondollar: I'm finishing GCSE's btw. In reply to that!!:biggrin:

Annnd girll my mind is fuggled up rn. I tried but it didn't look right?

It was like x squared bd??


Haha no worries. Why don't you post your workings and I can tell you the bits I think you need to change :wink:

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Original post by Matrix123
Haha no worries. Why don't you post your workings and I can tell you the bits I think you need to change :wink:

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Thiis looks reaally wrong.
But here it goes:

The final answer i got is like

ax+ad-x²+cx-bc
bd
(edited 8 years ago)
Original post by SoDoneWithSchool
Thiis looks reaally wrong.
But here it goes:

The final answer i got is like

ax+ad-x²+cx-bc
bd

Take it one step at a time:
(x+a) - (x+c)
------ ------
(x-b) - (x+d)

You can multiply the numerator and denominator of the first fraction by (x+d)second one by (x-b) as ihatePE said. Then write out the full answer you get to the numerator and leave the denominator (don't simplify it yet)
(edited 8 years ago)
Original post by Matrix123
Take it one step at a time:
(x+a) - (x+c)
------ ------
(x-b) - (x+d)

You can multiply the numerator and denominator of the first fraction by (x+d)second one by (x-b) as ihatePE said. Then write out the full answer you get to the numerator and leave the denominator (don't simplify it yet)


Okay. i got that bit, but its so long.:s-smilie: Should i leave it that way??
Original post by SoDoneWithSchool
Okay. i got that bit, but its so long.:s-smilie: Should i leave it that way??


Fair enough

(x2+ax+xd+ad)-(x2-xb+xc-bc)
--------------------------------------
(x-b)(x+d)

You need to pay careful attention to the signs in the numerator, especially with the second brackets. Can you simplify the numerator?
Original post by Matrix123
Fair enough

(x2+ax+xd+ad)-(x2-xb+xc-bc)
--------------------------------------
(x-b)(x+d)

You need to pay careful attention to the signs in the numerator, especially with the second brackets. Can you simplify the numerator?


I sound really stupid rn :colondollar:
but its not possible to simplify cause there aren't any common things apart from the x²'s in the numerator right?
Original post by SoDoneWithSchool
I sound really stupid rn :colondollar:
but its not possible to simplify cause there aren't any common things apart from the x²'s in the numerator right?


That's correct. Sorry my mistake, I meant can you multiply everything out if the second bracket, then you could simplify the x2s.

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Original post by Matrix123
That's correct. Sorry my mistake, I meant can you multiply everything out if the second bracket, then you could simplify the x2s.

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Its fine!! Okay, so the x²'s would cancel out right?
Original post by SoDoneWithSchool
Its fine!! Okay, so the x²'s would cancel out right?


Yep

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ohhh so is that it??
Original post by SoDoneWithSchool
ohhh so is that it??


If you've got everything out of the brackets then I think so, I can't get any further. You don't have the answer do you?

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Original post by Matrix123
If you've got everything out of the brackets then I think so, I can't get any further. You don't have the answer do you?

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Yeah i guess that works! Nope i don't have the answer sadly. I was so confused but thank you so much for clearing it up!:smile:
Original post by SoDoneWithSchool
Yeah i guess that works! Nope i don't have the answer sadly. I was so confused but thank you so much for clearing it up!:smile:


You're welcome. Please let me know if you make any advancements on the answer :wink:

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Original post by Matrix123
You're welcome. Please let me know if you make any advancements on the answer :wink:

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I will do!!:biggrin:
Original post by SoDoneWithSchool
I will do!!:biggrin:


Thanks :h:

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Hey! I'm taking a break from A2 maths work right now and I couldn't simplify it any further than this! (apologies for the messy writing and my arms in the background ahaha)

Photo on 07-02-2016 at 16.19.jpg

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