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Adding exponents

by Instinctlol
Tags: adding, exponents
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Instinctlol
#1
Feb15-12, 01:20 PM
P: 79
This is a really basic problem and I just need some review.
How do I add 2k+1 + 2k+1?

This is where I am stuck

212k+212k
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eumyang
#2
Feb15-12, 01:24 PM
HW Helper
P: 1,347
Think of it this way. Can you add
x + x?
y + y?
something + something?
This is what the expression
2k+1 + 2k+1
merely is. Once you get that, then you can use the appropriate property of exponents.
Instinctlol
#3
Feb15-12, 01:53 PM
P: 79
Quote Quote by eumyang View Post
Think of it this way. Can you add
x + x?
y + y?
something + something?
This is what the expression
2k+1 + 2k+1
merely is. Once you get that, then you can use the appropriate property of exponents.
Oh I see, so it would be..

2*2k+1 = 2k+2

and just another one for fun

2k+1+2k+1+2k+1+2k+1 = 4*2k+1 = 2*2*2k+1 = 2k+3

Does this seem correct?

Mark44
#4
Feb15-12, 02:05 PM
Mentor
P: 21,291
Adding exponents

Quote Quote by Instinctlol View Post
Oh I see, so it would be..

2*2k+1 = 2k+2

and just another one for fun

2k+1+2k+1+2k+1+2k+1 = 4*2k+1 = 2*2*2k+1 = 2k+3

Does this seem correct?
Not only does it seem correct, it is correct.
Instinctlol
#5
Feb15-12, 02:12 PM
P: 79
Cool thanks !


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