Distributive Property

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					The Distributive Property &
  Combining Like Terms
        SIMPLIFYING BY COMBINING LIKE TERMS


    Like Terms are expressions that contain the same
    variable raised to the same power like 4mn and 7mn.


                      The 8x and 3x are like
 8x + 3x + y = 11x +y
                      terms and can be
                      combined.

4x2 + 2 + x2 + 6 = 4x2 +1 x2 + 2 + 6 Group like terms.
                 = 5x2 + 8 Combine like terms.
       USING THE DISTRIBUTIVE PROPERTY

THE DISTRIBUTIVE PROPERTY

The product of a and (b + c):

a(b + c) = ab + ac 2(x + 5) = 2(x) + 2(5)= 2x + 10


(b + c)a = ba + ca (x + 5)2 = (x)2 + (5)2            = 2x + 10




              y(1 + x) =        y(1) +y(x)   =   y + xy

             (1 + 5x)2 = (1)2 + (5x)2        =   2 + 10x
     USING THE DISTRIBUTIVE PROPERTY



(3)(1 + x)= (3)(1) + (3)(x)
          = 3 + 3x


(y + 5)(2)= (y)(2) + (5)(2)
           = 2y + 10
Sometimes you will need to use the Distributive
Property in Reverse.




                ¸ 2
2(7 + 3x) = (2)(7) + (2)(3x)

         = 14 + 6x
  Find the perimeter of the following figure.
                    4x + 3y


       3x -2y
                                   3x -2y


                      2x

To find the perimeter, add the sides together.

3x – 2y +3x -2y + 4x + 3y + 2x = 12x -y
  Find the perimeter of the following figure.
 TRY
 THIS
        5x + y                   5x + y


                   6x – 2y

To find the perimeter, add the sides together.

5x + y +5x + y + 6x - 2y = 16x
The Distributive Property &
  Combining Like Terms

				
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posted:7/27/2013
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Jun Wang Jun Wang Dr
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