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the question is to write this equation in its simplest form.
3n+1+3n / 3n – 3n+1

it would be great if you could show the working out cause then ill understand it more

2006-09-13 14:18:38 · 8 answers · asked by Anonymous in Science & Mathematics Mathematics

what do you mean by parent thesis?

2006-09-13 14:23:09 · update #1

3^(n+1)+3^(n) / 3^(n) – 3^(n+1)

sorry i just realised the computer couldnt do to the power of

2006-09-13 14:27:34 · update #2

8 answers

I'm assuming that everything to the left of the division bar is the numerator, and everything to the right is the denominator. With this in mind, the answer would be -2.

[3^(n+1)+3^n]/[3^n-3^(n+1)] = [(3*3^n)+3^n]/[3^n-(3*3^n)]
=[(3+1)*(3^n)]/[(1-3)*(3^n)]
=[4*(3^n)]/[-2*(3^n)]
=4/-2
=-2

2006-09-13 14:39:47 · answer #1 · answered by Chris S 5 · 1 0

6n+1, 3n-3n is 0 so the denominator is 1.

2006-09-13 21:27:08 · answer #2 · answered by Nelson_DeVon 7 · 0 0

The answer is 6n+1. The numerator = 6n+1 and the denominator = 1. Therefore, 6n+1/1=6n+1.

2006-09-13 21:23:29 · answer #3 · answered by mathlete1 3 · 0 0

Your problem should read

(3^(n+1)+3^n) / (3^n -3^(n+1))

Factor 3^n out of the numerator and denominator gives

3^n(3+1) / 3^n(1-3) = (3+1)/(1-3) = 4/-2 = -2

Make sure you include the parentheses (brackets) in the proper places. The order of priority of operations is PEMDAS:- Parantheses, Exponents, Multiplication, Division, Addition, Subtraction.

Here's a link to help you understand how to present problems and to solve them yourself.

http://www.purplemath.com/modules/orderops.htm

2006-09-13 21:22:50 · answer #4 · answered by Jimbo 5 · 0 0

3n+1+3n / 3n – 3n+1
3n+1 + 1 - 3n+1 [do 3n/3n]
3n+3-3n [combine the digits first (1+1+1)]
3 [combined the like terms [3n-3n]

2006-09-13 21:27:03 · answer #5 · answered by Robin C 4 · 0 0

Please clarify using parenthesis.

Is it (3n + 1 + (3n/3n) -3n + 1)?
Or (3n + 1 + 3n)/(3n -3n + 1)?
Or something else?

2006-09-13 21:21:57 · answer #6 · answered by yungr01 3 · 0 0

6n +1 if there are no parentheses'

2006-09-13 21:27:30 · answer #7 · answered by BI - Health 1s 2 · 0 0

6n+1


do you know how to use the cancellation method? it's easier
if you know that.

2006-09-13 21:42:39 · answer #8 · answered by lulu 3 · 0 0

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