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प्रश्न
If m = 2, find the value of 3m2 − 2m − 7.
बेरीज
उत्तर
3m2 − 2m − 7 Putting m = 2 in the given equation
= 3 × 22 - 2 × 2 - 7
= 3 × 4 - 4 - 7
= 12 - 4 - 7
= 1
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