Math Help

Archive for May, 2007

Question: Help With Math FACTORING. pleaseee?

Factor the following polynomials:
1. X^2 + 8x – 9
2. X^2 – 15x + 44
3. X^2 – 7x – 30
4. X^2 – 12x + 32
5. X^2 – 33x – 280

THANK YOU THANK YOU THANK YOU!

Answer: 1. (x-1)(x+9) 2. (x-11)(x-4) 3. (x+3)(x-10) 4. (x-8)(x-4)
5. (x-40)(x+7)

Factoring Polynomial Equations – YourTeacher.com – Algebra Help

Question: 10 Ticks Maths Homework Sheet?

can anyone find / give me the answers to this 10 Ticks worksheet?
the page title is Standard Index Form (With calculator)
at the bottom it says Level 7/8 Pack 2 Page 36

can someone please help i was meant to hand this in ages ago and i really don’t get it!
thanks

Answer: No, because it’s cheating.
Instead, do the work and post it up here and we’ll HELP by correcting it.

Sarah doing her math homework

Question: I really need help with my math – algebra; factoring polynomials…?

r^2 – 6r – 9s^2 + 9………………….I need to factor this plynomial completely. Please help

Answer: First of all, let’s group the terms with r in them:
(r² – 6r) – 9s² + 9

Now group the terms with a 9 in them:
(r² – 6r) – (9s² – 9) ——> Notice that we changed the sign on the last 9, since if you distributed the minus sign outside of the second set of parentheses, you would get back a positive 9.

We can now factor out an r from the first part and a 9 from the second part:
r(r – 6) – 9(s² -1)

We can take the (s² -1) and factor it once more to get:
r(r – 6) – 9(s +1)(s – 1)

Voila! Factorization is complete.

Factoring Completely – YourTeacher.com – Algebra Help