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जोड़िए: 5m – 7n, 3n – 4m + 2, 2m – 3mn – 5 - Mathematics (गणित)

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Question

जोड़िए: 5m – 7n, 3n – 4m + 2, 2m – 3mn – 5

Sum

Solution

(5m - 7n) + (3n - 4m + 2) + (2m - 3mn - 5)

= 5m - 7n + 3n - 4m + 2 + 2m - 3mn - 5

= 5m - 4m + 2m - 7n + 3n - 3mn + 2 - 5

= m (5 - 4 + 2) + n (-7 + 3) -3mn + 2 - 5

= 3m - 4n - 3mn - 3

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बीजीय व्यंजकों का योग
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Chapter 12: बीजीय व्यंजक - प्रश्नावली 12.2 [Page 256]

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NCERT Mathematics [Hindi] Class 7
Chapter 12 बीजीय व्यंजक
प्रश्नावली 12.2 | Q 2. (vi) | Page 256
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