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OpenStudy (vortish):
multiply and simplify the expression (9-z)z
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OpenStudy (anonymous):
9z-z^2
OpenStudy (vortish):
can you show me how you did that pls
OpenStudy (anonymous):
Distributive property.
OpenStudy (anonymous):
\[ c(b+a)=cb+ca \\ c(b-a)=cb-ca \]
OpenStudy (anonymous):
In this case, \(c=z,b=9,a=z\)
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OpenStudy (anonymous):
all you do is multiply th z that is on the outside with what is on the inside
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