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OpenStudy (anonymous):
(5z-u)(7z+7u)
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OpenStudy (mathlegend):
You must use the method of foil.
OpenStudy (mathlegend):
So distribute the 5z first.
OpenStudy (mathlegend):
5z*7z = ? 5z*7u = ?
OpenStudy (anonymous):
i did... im trying to figure out if i should let 35zu and -7uz stay the way they are or should i let it combine to get 28zu?
OpenStudy (mathlegend):
only combine like terms
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OpenStudy (anonymous):
so let it stay the way it is?
OpenStudy (mathlegend):
35zu - 7uz are different terms
OpenStudy (mathlegend):
Don't touch them
OpenStudy (anonymous):
thats what i meant by letting them stay the way they are! i appreciate you. thanks for your help!
OpenStudy (mathlegend):
np
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