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OpenStudy (anonymous):
Find the sum: 9y^2 + 7y^2
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myininaya (myininaya):
16y^2
OpenStudy (anonymous):
they are like terms so yeah: \[9y ^{2}+7y ^{2}= 16y ^{2}\]
OpenStudy (anonymous):
\[y ^{2}+y ^{2}=2y ^{2}\] might be easier to see...
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