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Multiply.Use the distributive property. A) 3(x-2y) B)-(x-3y) C)5x(x+2y+z)
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High School Teacher
The distributive property states that:
Applying this to the above problems result to:
(A.) `3(x-2y) = 3*x -2y*3= 3x - 6y`
Hence, `3(x-2y)= 3x - 6y` .
(B) `-(x - 3y)`
A negative outside the parenthesis is the same as multiplying the expression inside the parenthesis with -1.
`=-1(x-3y) = -1*x -3y*(-1)= -x+3y=3y-x`
Hence, `-(x-3y)=3y-x` .
Posted by mjripalda on February 19, 2013 at 1:49 PM (Answer #1)
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