I suck at math

[Zanix]

Problem:

5 * 5^k - 1 = 5(5^k - 1) + _____.


My answer attempt: 4.


This is part of an inductive hypothesis proof.



Thanks for the help.

 

[thecrecarc]

using my awsome 12 year old brain doing geometry... i deduce, no


i say -4

 

[xSauronx]

im just going to go with "if you have to ask..."

 

[Darthvoy]

I believe you are correct..the answer should be 4

 

[DrPizza]

Originally posted by: Darthvoy
I believe you are correct..the answer should be 4

I *know* you are correct 🙂

 

[tikwanleap]

Originally posted by: DrPizza

Originally posted by: Darthvoy
I believe you are correct..the answer should be 4

I *know* you are correct 🙂

I know *you* are correct.

 

[BooGiMaN]

Originally posted by: tikwanleap

Originally posted by: DrPizza

Originally posted by: Darthvoy
I believe you are correct..the answer should be 4

I *know* you are correct 🙂

I know *you* are correct.

geta room the 3 of you!

geez whats with these PDAs (public displays of arithmatic)

 

[NiteWulf]

Is it 5 * 5^(k-1) =5(5^(k-1))+___
or 5 * (5^k)-1 =5((5^k)-1)+___
?

 

[KoolDrew]

Originally posted by: Darthvoy
I believe you are correct..the answer should be 4

 

[maziwanka]

you're kidding right

 

[imported_malcontent]

How can you solve that, if you don't know what 'k' is?
Apparently math has gotten way evolved since I was in school.

 

[BlueWeasel]

The value of k doesn't matter. It's just order of operations and getting each equation to balance.

 

[conehead433]

42

 

[sonz70]

Originally posted by: malcontent
How can you solve that, if you don't know what 'k' is?
Apparently math has gotten way evolved since I was in school.

yeah, counting bushels and barrels doesn't happen in school anymore 😉

 

[mAdMaLuDaWg]

Originally posted by: conehead433
42

 

[tikwanleap]

Originally posted by: BooGiMaN

Originally posted by: tikwanleap

Originally posted by: DrPizza

Originally posted by: Darthvoy
I believe you are correct..the answer should be 4

I *know* you are correct 🙂

I know *you* are correct.

geta room the 3 of you!

geez whats with these PDAs (public displays of arithmatic)

Just for *you*, i'll put my arithmatic away. :heart: