1. 1.3 Algebraic Expressions Goals: ~Evaluate algebraic expressions ~Simplify algebraic expressions

3. Simplify: 12 + 24 ÷ 6 ∙ 2

4. Order of Operations PleaseExcuseMyDearAuntSally

5. Exponents and Powers Evaluate 3 4

6. Exponents and Powers Evaluate 3 4 4 is the _______________ 3 is the _______________ Power is the product of equal factors.

7. Exponents and Powers What is the difference between (3x) 2 and 3x 2

8. Simplify these numeric expressions 6 ÷ 3 ∙ 2 3 + 9 (6 ÷ 3 ∙ 2) 3 + 9 (6 ÷ 3) (2 3 + 9) 6 ÷ (3 ∙ 2 3 ) + 9

9. Term ► Part of an expression. ► Can be a number, variable, or product of one or more numbers or variables.

10. Coefficient ► Number in front ► Numerical factor of a term

11. Like Terms ► Same variable raised to same power ► 3x 2 and -6x 2 ► -5a 2 b 3 and 10a 2 b 3 ► NOT LIKE TERMS: 10x 2 y and -5xy 2

12. Combine Like Terms ► Combine coefficients ► Use the same variable and coefficients

13. Combine Like Terms 1.) 3k – k 2.) 5z 2 – 10z – 8z 2 + z = 3.) -(m – n) + 2(m – 3n) =