Bell Ringer #4 (2-5-16) Try and define these terms or say what they mean: 1. distribute 2. factor 3. constant 4. coefficient 5. variable
2.7 The Distributive Property
Simplify by using the Distributive Property 6 ( 3x + 5 ) 6 ● 3x = + 6 ● 5 = 18x + 30
Simplify by using the Distributive Property 5 ● 2 = + 5 ● 7y = + 35y 10 = 35y + 10
Simplify by using the Distributive Property -4 ( 8a - 9 )
Simplify by using the Distributive Property -5(x – 3y +8z)
Simplify by using the Distributive Property 4( s – t + w ) 3
Simplify by using the Distributive Property 5( x – 3y + 8z) 6
Factoring The reverse of multiplying Factor out the greatest common factor (GCF) of all terms
Factor 5 x + 5 y = 5(x + y)
Factor 9x + 27y = 9x + 9 (3y) = 9 (x + 3y)
Factor 18a + 21b = 3(6a) + 3(7b) = 3 (6a + 7b)
Factor 5x – 35y – 10
Try on your own… Factor - 25y + 15w + 5
What are these terms called? What is a term? Terms are separated by addition or subtraction What are these terms called? x - 15 + 8y coefficient Variable term Variable Term Constant Term
same VARIABLE and same EXPONENT What are “like terms”? same VARIABLE and same EXPONENT 2x + 5x 27 - 6z NOT LIKE TERMS LIKE TERMS
What are “like terms”? 3m + m - 20m w² + w NOT LIKE TERMS LIKE TERMS same VARIABLE and same EXPONENT 3m + m - 20m w² + w NOT LIKE TERMS LIKE TERMS
Combine like terms 5x + 4x + 2x add coefficients = 11x
Combining Like Terms Change all subtraction to adding the opposite. Combine like terms. 5x - (-9) + 2x + 7 = 5x + 9 + 2x + 7 = 7x + 16
Bell Ringer #6 Now explain these terms after what you have learned: 1. distribute 2. factor 3. constant 4. coefficient 5. variable