Answer :

pleasehelpthanksss
multiply the parentheses then collect like terms
(x+4y+z) (x-7y)

x^2-7xy+4xy-28y^2+xz-7yz

x^2-3xy-28y^2+xz-7yz
fwtiny

Answer:

so what are the propertys?

Step-by-step explanation:

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