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OpenStudy (anonymous):
(84y^2 - 30y) - (9y^2 + 15y)
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OpenStudy (anonymous):
first eliminate your brackets
OpenStudy (anonymous):
\[84y ^{2}-30y-9y ^{2}-15y\]
OpenStudy (anonymous):
now you can solve by collecting the like terms the y^2 together and the y only together
OpenStudy (anonymous):
are you able to continue?
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