williamsjessica1
williamsjessica1 williamsjessica1
  • 23-08-2019
  • Mathematics
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3xz(9xy+z)-2yz(x+y-z)

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tramserran
tramserran tramserran
  • 23-08-2019

Answer:  27x²yz + 3xz² - 2xy - 2y²z + 2yz²  

Step-by-step explanation:

Use the distributive property.

   3xz(9xy + z)           - 2yz(x + y - z)

= 3xz(9xy)  +  3xz(z)  -2yz(x)   -2yz(y)   -2yz(-z)

=  27x²yz   +   3xz²    -2xy       -2y²z      +2yz²  

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