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.
Read Pages 264-268
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