Asked by Devki

Hello, I am new to this website. I havea summer assignment on Algebra II. I need help on these problems. I find I be not able to understand them.

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)

Answers

Answered by Damon
Well, 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)
Answered by Devki
Thank you!

Is this right?

(mn^2/3)(4/mn)
[(mn)(mn)/3] * [4/mn]

(mn/3)(4)

ANSWER: 4mn/3
Answered by Damon
I 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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