1. Exponents & Order of Operations
Notes for November 8
Section 4-2

2. Today’s Objective I can simplify expressions which involve:
Grouping Symbols – Parenthesis & Fraction Bars
Exponents

3. But first! Let’s review!

4. 7 – – 24 ÷ 6
÷ 6
Ex. 1
4 + -4 4

5. 7 – – 24 ÷ 6
÷ 6
Ex. 1
4 + -4 5

6. ÷ 2 – 11(2)
÷ (2)
(2)
Ex. 2 -2 6

7. ÷ 2 – 11(2)
÷ (2)
(2)
Ex. 2 -2 7

8. Ex. 3 4 – 3(2) + 6 – 8 ÷ 2 4 + -3(2) + 6 + -8 ÷ 2 4 + -6 + 6 + -8 ÷ 2
4 + -4 8

9. Ex. 3 4 – 3(2) + 6 – 8 ÷ 2 4 + -3(2) + 6 + -8 ÷ 2 4 + -6 + 6 + -8 ÷ 2
4 + -4 9

10. Definition
Fraction Bars – The bar used to separate the numerator and denominator in a fraction.
Ex.
When we see fractions bars, we simplify:
Everything on ________
Everything on ___________
_____________ the two
top
bottom
Divide

11. 11

12. 12

13. Now let’s check out some problems with
Exponents!!!

14. Exponents come before the “m or d & a or s.”
Remember!!
Exponents come before the “m or d & a or s.”

15. An exponent is just repeated multiplication
An exponent is just repeated multiplication. It would be smart for you to write it out before doing it!
Just write it out...

16. What happens when you have a negative number with exponents???
Careful!!
What happens when you have a negative number with exponents???
Just write it out...

19. Simplify for x= -3 and y = 4