हिंदी

Multiply (x2 - 3) (2x - 7x 3 + 4) and write the degree of the product. - Algebra

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प्रश्न

Multiply (x2 - 3) (2x - 7x + 4) and write the degree of the product. 

विकल्प

  • 5

  • 3

  • 2

  • 0

MCQ

उत्तर

5

Explanation:

`(x^2 - 3)(2x - 7x^3 + 4)`

`= x^2 (2x - 7x^3 + 4) - 3 (2x - 7x^3 + 4)`

`= 2x^3 - 7x^5 + 4x^2 - 6x +21x^3 - 12`

`= -7x^5 + 2x^3 + 21x^3 +4x^2 - 6x - 12`

`= -7x^5 + 23x^3 + 4x^2 - 6x - 12`

Thus, the degree of the resultant polynomial is 5.

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Degree of Polynomial
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Polynomials - Problem Set 3 [पृष्ठ ५५]

APPEARS IN

बालभारती Algebra (Mathematics 1) [English] 9 Standard Maharashtra State Board
अध्याय 3 Polynomials
Problem Set 3 | Q (1) (ix) | पृष्ठ ५५
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