Polynomials · Class 9 · CBSE Mathematics

Find the zero of the polynomial p(x) = 2x + 5.

Practice question from Polynomials (Class 9 · CBSE Mathematics), with the correct answer and a step-by-step solution.

easy · MCQ · Q-D5D6D3

Find the zero of the polynomial p(x)=2x+5.p(x) = 2x + 5.

  1. A.5/2
  2. B.-2/5
  3. C.-5/2Correct answer
  4. D.2/5

Solution

To find the zero of a polynomial p(x)p(x), set p(x)=0p(x) = 0. So, 2x+5=0  ⟹  2x=−5  ⟹  x=−5/22x + 5 = 0 \implies 2x = -5 \implies x = -5/2.

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