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प्रश्न
Simplify: -5m (-2m + 3n – 7p)
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उत्तर
- 5m (-2m + 3n – 7p)
= – 5m x (-2m) + (-5m) (3n) – (-5m) (7p)
= 10m2 – 15mn + 35 mp.
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