Presentation on theme: "Big Ideas Ch 3 Expression and Equations"— Presentation transcript:
1 Big Ideas Ch 3 Expression and Equations 3. 1 Algebraic Expressions
2 How are they different? Expression Equation No = Can only simplify Give an Numerical Expression:3 +4Give an Algebraic Expressions3x+4Has an =Solve for missing variableGive a Numerical Equation3+4 = 7Give an Algebraic Equation3x +4 =7
3 Your brother tries to tell you that 6x +4 -2x is the same thing as 8x+4. Is it?No!!!Explain why your brother’s answer is incorrect.It is incorrect because 6x -2x =4x not 8xWhat is the correct answer?The correct answer is 4x +4How did you get the correct answer?
4 TermsAfter you turn all subtraction into addition using (KFC) terms are what is separated by addition signs
5 Like TermsTerms that have the same variables raised to the same exponent