Day 35 – October 10

Algebra: Chapter 3, Benchmark #3

No homework!

======================================================================

Algebra 1a: Chapter 2, Lesson 7, page 89.

Using the Distributive Property

The distributive property of multiplication over addition and subtraction is:

`a(b+c)=ab+ac` and `a(b−c)=ab−ac`

You can also combine LIKE TERMS ONLY IF THE VARIABLE AND THE EXPONENT OF THE VARIABLE ARE EXACTLY THE SAME!

Examples, (remember to use the wacky arrows!):

`9(x – 5) = 9x – 9(5) = 9x – 45`

`-4(x – 2y + 3z) = -4x +(-4)(-2y) + (-4)(3z) = -4x -4(-2y) -4(3z)`

`= -4x + 8y – 12z`

(if it comes up, don’t forget the change-change or bling-bling, double negative thingy …)

Here is a link from purplemath.com about the distributive property with more examples.

Two of tonight’s homework problems solved by MrE are here! Just click it!

This entry was posted in Algebra 1, Algebra 1a. Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *