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Polynomials — Maths STD 9 — Question

Gujarat BoardEnglish MediumSTD 9MathsPolynomials1 Mark
MCQ
The coefficient of x2 in (2 - 3x2) (x2 - 5) is:
  • A
    17
  • B
    -10
  • C
    1
  • D
    -17
✓

Answer

  1. 17
    Solution:
    (2 - 3x3) (x2 - 5)
    = 2x2 - 10 - 3x4 + 15x2
    = -3x4 + 17x2 - 10
    Therefore, the coefficient of x2 is 17.

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