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खालील बहुपदींचे अवयव काढा. (y + 2) (y − 3)(y + 8) (y + 3) + 56 - Mathematics 1 - Algebra [गणित १ - बीजगणित]

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Question

खालील बहुपदीचे अवयव काढा.

(y + 2) (y − 3)(y + 8) (y + 3) + 56

Sum

Solution

(y + 2) (y – 3) (y + 8) (y + 3) + 56 

= (y + 2) (y + 3) (y + 8) (y – 3) + 56

= (y2 + 3y + 2y + 6) (y2 + 8y – 3y – 24) + 56

= (y2 + 5y + 6) (y2 + 5y – 24) + 56

y2 + 5y = z मानू.

∴ (y2 + 5y + 6) (y2 + 5y – 24) + 56

= (z + 6 ) (z – 24) + 56

= z2 – 24x + 6x – 144 + 56

= z2 – 18z – 144 + 56

= z2 – 18z – 88

= z2 – 22z + 4z – 88

= z (z – 22) + 4 (z – 22)

= (z – 22) (z + 4)

= (y2 + 5y – 22) (y2 + 5y + 4)   ...(z = y2 + 5y ठेवून)

= (y2 + 5y – 22) (y2 + 4y + y + 4)

= (y2 + 5y – 22) [y (y + 4) + 1 (y + 4)] 

= (y2 + 5y – 22) (y + 4) (y + 1)

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बहुपदींचे अवयव
  Is there an error in this question or solution?
Chapter 3: बहुपदी - सरावसंच 3.6 [Page 55]

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Balbharati Algebra (Mathematics 1) [Marathi] 9 Standard Maharashtra State Board
Chapter 3 बहुपदी
सरावसंच 3.6 | Q (2) (v) | Page 55
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