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Algebraic Expressions

Algebraic Expressions. Unit 1-1. Key Words:. Algebraic Expression: An expression that contains at least one variable. Ex. 2x 3x 2 + 3y – 5 Like Terms: Terms with the same variables raised to the same exponents. Ex. 4x 2 and 3x 2 Are 3xy and 4x?. Order of Operations.

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Algebraic Expressions

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  1. Algebraic Expressions Unit 1-1

  2. Key Words: • Algebraic Expression: An expression that contains at least one variable. Ex. 2x 3x2 + 3y – 5 • Like Terms: Terms with the same variables raised to the same exponents. Ex. 4x2 and 3x2 Are 3xy and 4x?

  3. Order of Operations • PEMDAS • Parenthesis () • Exponents 3x2 • Multiplication and Division* • Addition and Subtraction* *Multiplication and Division must be performed left to right. Multiplication is not necessarily first. Same with Addition and Subtraction.

  4. Simplifying Algebraic Expressions Distribute

  5. Simplifying Algebraic Expressions Multiply or Distribution Combine like terms

  6. Your turn! Answer:

  7. Order of Operations PEMDAS PEMDAS *Remember: addition and subtraction is performed left to right!

  8. Order of Operations PEMDAS PEMDAS PEMDAS PEMDAS PEMDAS

  9. Your turn! Answer:

  10. Evaluating Algebraic Expressions ; x = 4 and y = 7 SUBSTITUTE! PEMDAS PEMDAS

  11. Evaluating Algebraic Equations ; b = 6 and z = 2 SUBSTITUTE! PEMDAS PEMDAS PEMDAS

  12. Your turn! ; x = 2 and y = 5 Answer:

  13. ASSIGNMENT • Page 30 # 3 - 7

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