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Monday, October 17, 2005

Solving with Radicals

At the beginning of the class Mr. K gave us three questions on the board, which were :


There are many ways to solving an equation with radicals in it. One way is to:
1. Balance the equation so that the radical is by itself
2. Square both sides
3. Radical then cancels



Example of that would be:


Anyways back to the questions, this is how you would solve question A.
**You can make sure it's right by substituting x for 3.

The second question gets a little bit more complicated:

**Normally you can square positive(+) and negative (-) numbers but in the given equation only use the principle root, so it can be a function.

The third question's getting even more harder because there are now two radicals:
First thing you would want to do for these types of questions is to make sure only one radical is on one side. Then solve the rest, like how it's been solved in the previous questions.


Then Mr. K gave us 3 more practice questions, I'm not gonna go show how its done (hehe to lazy), for the people who weren't in class today, you can also use them as practice. Here they are:


Then Mr. K told us he was going to be away 2 days this week, AND AND AND there will be an upcoming test, earliest is on Monday and the latest is on Tuesday. So expect a pre-test this up-coming thursday.

Anyways the next scribe is Graeme W

4 Comments:

At 10/17/2005 9:27 PM, Blogger AichelleS. said...

haha nice one Jacky, it's refreshing..haha...I wonder..did I beat Reeshard at commenting?

 
At 10/17/2005 9:30 PM, Blogger Richy said...

Stop calling me that.... Er... Well anyways.... That's allot of work. Good Job. Hahaha. (Guess she did beat me. Sigh///) Great... Test comming up... *Cries

 
At 10/17/2005 9:57 PM, Blogger Craig K said...

Good Job jacky! Great job with the diagrams! Thats a lot of calculations!

 
At 10/17/2005 10:38 PM, Blogger Mr. Kuropatwa said...

Great post Jacky. The end really made me laugh:

"there will be an upcoming test, earliest is on Monday and the latest is on Tuesday. So expect a pre-test this up-coming thursday."

Ha, ha! So whenever I say the test will be, the REAL date will be two days after that. ;-) Do I really do that? ;-)

 

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