Thursday, August 25, 2011

Recognize the distributive property and "undistribution"

After distribution,we got these expressions:

a.   3(x) + 3(8)

b.   -10y + xy

c.   6w + 9z

Write the expressions before the distributive property was applied.

Hint - distribution means something outside the parentheses was shared in multiplication by two things inside the parentheses.  When we undo a distribution ("undistribute" or factor) we move something that multiplies from two position inside the parentheses to one psoition in front of or outside the parentheses.

a.   3 ( x + 8 )

b.   y (-10 + x )

c.   3 ( 2w + 3z )

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