October 17, 2011

Correcting exercises...

Hi class, I'm Maite :)
Today we haven't done any special, we have corrected the exercises of last week (56, 57, 60 and 64).
In the exercise 64 Mario has explained us that:

a) (5 2 x 25 2)3 = 5 6 x 25 6 = 56 x (52)6 = 5 6 x 5 12 = 5 18

* We can't do a multiplication of two powers if they don't have the same base, but in this    case 25 is a multiple of 5, so it can be simplyfied as 52.

So the multiplication remains as : 5 6 x (5 2)6
We don't have finished the exercise because we have angered Mario with our      behavior.  
 Next lesson we should behave better !!!



  Red: the exponent

7 comments:

  1. Thank you for your entry Maite! :D

    I'm really willing to teach you to upload entries involving mathematic formulas and expressions :)

    This lyrics extract from Smashing Pumpkins' 1996 hit song "Tonight tonight" describes what some people of our class feel... :P

    "AND YOU KNOW YOU'RE NEVER SURE
    BUT YOUR SURE YOU COULD BE RIGHT"

    http://www.youtube.com/watch?v=NOG3eus4ZSo

    ReplyDelete
  2. I was trying to rearrange a few things around here and that just happened by mistake... I'm sorry!

    ReplyDelete