Algebra Warm Up:
pg. 382 # 68-69
REMEMBER --becasue of the ABS value--
split into 2 cases to solve!
8.2 Laws of Exponents: Powers and Products pg. 377 -382
So yesterday you learned:
When multiplying like bases--you add exponents
When multiplying monomials--you multiply the coefficents, add
the exponents of the like bases
The second rule of exponents: (3 parts)
Raising power to a power.
In this case you will be applying an exponent to a set of
parentheses (multiplying the exponents together)
Raising Monomials to a Power
In this case--again you are applying the exponent outside the ( ) to
JUST like you use Distributive Property--The exponent applies to
EVERY part inside the ( )--THEN simplify if you can!
Sometimes you will have word problems--This just involves
SUBSTITUTING an expression into a formula
Powers of -1
Recall from chapter 2-
negative x megative = positive negative x positive = negative
positive x negative = negative positive x positive = posistive
This idea applies to exponents and negative numbers!
EVEN exponent applied to negative bases GIVES positive answer
(negatives cancel out)
ODD exponent applied to negative bases GIVES negative answer
Now you try them together! pg. 381 # 2-25
DON'T forget about the rule from yesteday--They will still apply!