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(ii) 3y2 - 6 - 2y + y2 – 3y + 7 - y2 – 4y - y2 +5
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Step-by-step explanation:
3y2 - 6 - 2y + y2 – 3y + 7 - y2 – 4y - y2 +5
=2y2 + 6 -9y
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