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Factorise : 1029 - 3x3 - Mathematics

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प्रश्न

Factorise : 1029 - 3x3

बेरीज

उत्तर

1029 - 3x3

= 3( 343 - x3 )

= 3( 73 - x3 )

= 3( 7 - x )( 72 + 7x + x2 )

= 3( 7 - x )( 49 + 7x + x2 )

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Method of Factorisation : the Sum Or Difference of Two Cubes
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पाठ 5: Factorisation - Exercise 5 (D) [पृष्ठ ७४]

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सेलिना Concise Mathematics [English] Class 9 ICSE
पाठ 5 Factorisation
Exercise 5 (D) | Q 17 | पृष्ठ ७४
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