Processing math: 100%
web2.0calc
 
+0  
 

 um help pls im not good at math

0
1004
6
avatar+50 

sqrt(128)

 May 4, 2017

Best Answer 

 #2
avatar+9488 
+4

We want to split 128 into it's prime factors.

√128=√2⋅2⋅2⋅2⋅2⋅2⋅2

 

Then we can rewrite this as:

=√2⋅2⋅√2⋅2⋅√2⋅2⋅√2

 

Now..replace each  √2⋅2   with 2

=2⋅2⋅2⋅√2

 

Multiply the numbers outside the radical together.

=8⋅√2 =8√2

 May 4, 2017

6+4 Answers

 #1
avatar
+2

8rad2

 May 4, 2017
 #2
avatar+9488 
+4
Best Answer

We want to split 128 into it's prime factors.

√128=√2⋅2⋅2⋅2⋅2⋅2⋅2

 

Then we can rewrite this as:

=√2⋅2⋅√2⋅2⋅√2⋅2⋅√2

 

Now..replace each  √2⋅2   with 2

=2⋅2⋅2⋅√2

 

Multiply the numbers outside the radical together.

=8⋅√2 =8√2

hectictar May 4, 2017
 #3
avatar+50 
+2

are you a math major or something you explain it so well

elitezombiemathmajor  May 4, 2017
 #4
avatar+9488 
+5

Lol! I am still in high school....though just barely!! laugh

But I really appreciate it! smileysmileysmiley

hectictar  May 4, 2017
edited by hectictar  May 4, 2017
 #5
avatar+50 
+2

im a sophmore and im curently failing algebra so yea imma be on this sight alot

elitezombiemathmajor  May 4, 2017
 #6
avatar
+1

I ma in 3rd grade and I can do this problem it's sqrt(2)*8 because 128 is 2^8. it is 8sqrt2

Guest May 6, 2017

1 Online Users

Top Users

avatar+130466 CPhill moderator
avatar+33654 Alan moderator
avatar+15073 asinus moderator
avatar+12530 Omi67 moderator
avatar+3146 admin administrator
avatar+2234 GingerAle
avatar+1950 NotThatSmart
avatar+1926 tomtom
avatar+1766 blackpanther
avatar+1729 parmen
avatar+1501 learnmgcat

Sticky Topics