Thread: basic algebra

pls help with following questions! im really stuck... and pls explain with full setting out,,, im w8ing for a genius to save me!!!
(s+1)(3s+2)
(d-2)(3d+5)
(a+3)(4-1)
(a+b)(a-b)
(3s-t)^2
(h-5)(2h+4)
(5-f)^2
(1+2x)(4+3x)
(h+3)(3h-4)
(1+7k)(5-k)
(3s-5t)(4s-2t)
(8-5r)(1-r)
(2y-7z)(5y-4z)
(2d-3c)(2d+3c)
(t+7)^2
(3+y)^2
(a+2b)^2
(2e+3f)^2
(p-5)^2
(x-y)^2
(d-2e)^2
(3p-5q)^2
I'm Sorry for the huge workload
thanks SO MUCH

Originally Posted by Graffitixgirl

pls help with following questions! im really stuck... and pls explain with full setting out,,, im w8ing for a genius to save me!!!
(s+1)(3s+2)
(d-2)(3d+5)
(a+3)(4-1)
(a+b)(a-b)
(3s-t)^2
(h-5)(2h+4)
(5-f)^2
(1+2x)(4+3x)
(h+3)(3h-4)
(1+7k)(5-k)
(3s-5t)(4s-2t)
(8-5r)(1-r)
(2y-7z)(5y-4z)
(2d-3c)(2d+3c)
(t+7)^2
(3+y)^2
(a+2b)^2
(2e+3f)^2
(p-5)^2
(x-y)^2
(d-2e)^2
(3p-5q)^2
I'm Sorry for the huge workload
thanks SO MUCH

You have got to be kidding!!

Do yourself a favour - read this.

I can only assume that your question is to expand the following expressions.
What problem are yo having here ? have you been showed how to do anythng like this before ?





can you follow that ?

Originally Posted by mr fantastic

You have got to be kidding!!

Do yourself a favour - read this.

oh w8
mayb i havent explained the situation properly.
im 12, you see. not a kind a genius uni student
im sorry
can someone just explain ONE of the equations?

Originally Posted by Graffitixgirl

oh w8
mayb i havent explained the situation properly.
im 12, you see. not a kind a genius uni student
im sorry
can someone just explain ONE of the equations?

When i was 12 I knew how to read. someone has explained how to do one of them, Read my post.

you will be surprised how many of you academic issues can be solved with a tiny bit of reading.

N.B Please make an effort to use correct English.

can i try one?
so....
(a+b)(a-b)
=a^2-ab+ab-b^2?
so...
=a^2-b^2?

Originally Posted by Graffitixgirl

can i try one?
so....
(a+b)(a-b)
=a^2-ab+ab-b^2?
so...
=a^2-b^2?

Yes

Originally Posted by Graffitixgirl

can i try one?
so....
(a+b)(a-b)
=a^2-ab+ab-b^2?
so...
=a^2-b^2?

Well done.

is it ok if i ask more l8r?
thx so much 4 ur encouragement

what about this? so sorry
(3st)^2

Originally Posted by Graffitixgirl

what about this? so sorry
(3st)^2

You really should take some time to actually learn all this basic algebra as opposed to rushing your homework to please your teacher.

I am not going not give you any further help. I suggest you do what you can and ask your teacher for help with what your stuck on tomorrow

Originally Posted by Graffitixgirl

what about this? so sorry
(3st)^2

=> then

trial:
(h-5)(2h+4)
=2h^2+4h-10h-20
=2h^2-6h-20

am i correct?

If I was a moderator I would close this thread.

Yes you are right and if you apply the same method you will get the rest of your homework right as well. You clearly lack confidence in what you are doing because your not really sure about this topic. I strongly advise you read the link that Mr F gave you, read your books examples and ask your teacher for help with your problems.