मराठी

Factorise Using the Grouping Method: A2 + 4b2 - 3a + 6b - 4ab - Mathematics

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प्रश्न

Factorise using the grouping method :
a2 + 4b2 - 3a + 6b - 4ab

बेरीज

उत्तर

a2 + 4b2 - 3a + 6b - 4ab
= a2 + 4b2 - 4ab - 3a + 6b
= a2 + (2b)2 - 2 × a × (2b) - 3(a - 2b)    [As (a - b)2 = a2 - 2ab + b2 ]
= (a - 2b)- 3(a - 2b)
= (a - 2b)[(a - 2b)- 3]
= (a - 2b)(a - 2b - 3)

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Factorisation by Grouping
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Factorisation - Exercise 5 (A) [पृष्ठ ६९]

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सेलिना Concise Mathematics [English] Class 9 ICSE
पाठ 5 Factorisation
Exercise 5 (A) | Q 18 | पृष्ठ ६९
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