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प्रश्न
If m = − 8, evaluate:
m2 + 9m
बेरीज
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उत्तर
m2 + 9m
= (m × m) + (9 × m)
= (− 8 × − 8) + (9 × (− 8))
= 64 + (− 72)
= 64 − 72
= − 8
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