Monday

April 21, 2014

April 21, 2014

Posted by **Devki** on Thursday, August 7, 2008 at 3:35pm.

Simplify:

1)(mn^2/3)(4/mn)

2)(x+4/x-4)(1/x+4)

3)(x^2-16/2x+8)(x+4/x^2+8x+16)

4)(n/4)(n/m)

5)(3a^3-27a/2a^2+13a-7)(9a^2/4a^2-1)

- Mathematics -
**Damon**, Thursday, August 7, 2008 at 3:44pmWell, I will do one of them, then you try the rest and post your work. One of us will try to help if we see where you are running into trouble.

3)(x^2-16/2x+8)(x+4/x^2+8x+16)

[(x-4)(x+4) / 2(x+4 )][(x+4)/[(x+4)(x+4]]

[(x-4)/2)][1/(x+4)]

(x-4)/(2x+8)

- Mathematics -
**Devki**, Thursday, August 7, 2008 at 4:17pmThank you!

Is this right?

(mn^2/3)(4/mn)

[(mn)(mn)/3] * [4/mn]

(mn/3)(4)

ANSWER: 4mn/3

- Mathematics -
- Mathematics -
**Damon**, Thursday, August 7, 2008 at 4:21pmI do not think m is supposed to be squared the way you typed it, only n

(m n n /3) (4 / m n)

4 n / 3

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