## Monday, February 28, 2011

### Noelle's Blog Post for Feb. 28th, 2011

What did we learn today?

Turning a trinomial into a binomial:

Trinomial ---> Binomial

How do you do it?

To get from a trinomial to binomial you have to find the product of each term and seperate them into the two terms of a binomial.

Here's the tricky part; The constants in your binomials must add up to the constant or coefficient in the middle term, but multiply to get the constant or coefficient in the last term of the trinomial.

Make sense? Here are a couple examples to show how it works:

x^2 + 7x - 18 --->Binomial

(x+9)(x-2) = Binomial

(+9)(-2)=(-18)

9+(-2)=7

y^4 - 3x - 18 --->Binomial

(y^2-6)(y^2+3)

(-6)(3)=(-18)

(-6)+3=(-3)

This is what we learnt, and then we played TUTPUP!

Aight, that was basically all we learned. I choose EMMANUEL to do the next blog post because he didn't do it on thursday.

## Wednesday, February 16, 2011

### Brayden's Blog Post for February 16,2011

Today in class we continued to learn about multiplying polynomials.

Ex.

2x(3x+7) = (2 x 3 x) + ( 2 x 7 ) This is called distributive property.

= (2 3 x x) + (2 7 x) You then put the like terms together.

= 6x^2 + 14x Then you simply multiply the terms to get your answer.

Here is another example of multiplying polynomials

-2x(3x+2y-1) = ( -2 x 3 x ) + ( -2 x 2 y) + ( -2 x -1)

= ( -2 3 x x ) + ( -2 2 x y ) + ( -2 -1 x )

= -6x^2 +( -4xy) + 2x

= -6x^2 -4xy + 2x

After that the teacher showed us how to model equations.

This equation is 3x (2x+1)

The lone number is the number you multiply by and the 2 numbers are the numbers being multiplied.

This is our homework.
CYU 2+3
Practice Odd + Evens
Any 2 Apply
Extend 19+20 or 20+21
Homework book 7.2
Extra Practice 7.2

EMMANUEL is doing the next blog

## Monday, February 14, 2011

### Darnell's Blog Post for February 14, 2011.

Hello class. Today we learned more about the information on chapter 7 monomials.

First we learned about Distributive Property.
It's a process where you distribute the negative one (monomial) over the binomial.
Example:
-(6x+7) = -1 (6x) + (-1) (7)
= -6x-7
The negative turns into a -1.

We did some questions and did both pictures and work in class.

You can tell the answer is right
in the picture if the first factor ( the left side ) and the second factor ( the top side ) are matched up with the shape thats in the middle of the graph.

Next we tried it with fractions. In this case we had something that helped. Anything over itself for example like 12/12 or X/X, the answer is 1.

For homework we have:
7.1 Extra Practice
7.1 Homework Book
7.1 254-259 CYU 1 & 2
Practice odd or even
Apply All
Extend
7.10 Monomial Division