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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Find the Cube Of: 2a + 3b - Mathematics

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प्रश्न

Find the cube of: 2a + 3b

बेरीज

उत्तर

(2a + 3b)3 = (2a)3 + (3b)3 + 3×2a×3b(2a + 3b)

= 8a3 + 27b3 + 18ab (2a + 3b)

= 8a3 + 27b3 + 36a2b + 54ab2

= 8a3 + 36a2b + 54ab2 + 27b3

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Cubes of Binomials
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पाठ 12: Identities - Exercise 12 (B) [पृष्ठ १५२]

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सेलिना Concise Mathematics [English] Class 8 ICSE
पाठ 12 Identities
Exercise 12 (B) | Q 5.3 | पृष्ठ १५२
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