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प्रश्न
Identify the errors and correct them
7y2 – y2 + 3y2 = 10y2
योग
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उत्तर
7y2 – y2 + 3y2 = 10y2
= (7 – 1 + 3)y2
= (6 + 3)y2
= 9y2
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