Start learning →

Kerala Police Constable Polynomials — practice questions

Explore 1 free Polynomials questions in Kerala Police Constable Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.

Practise Polynomials with Quill →

Polynomials questions and exercises with answers

Showing questions 1–1 of 1.

If a, b and c are the zeros of the cubic polynomial 2x^3 - x^2 - 2x + 1, find the value of ab + bc + ca.Read the answer and worked solution →

Worked practice questions

If a, b and c are the zeros of the cubic polynomial 2x^3 - x^2 - 2x + 1, find the value of ab + bc + ca.

  1. 2
  2. -1
  3. 0
  4. +1
Show answer and solution

Correct answer: B. -1

1. For ax^3 + bx^2 + cx + d, the sum of products of zeros taken two at a time = c/a. 2. Here c = -2 and a = 2. 3. So ab + bc + ca = -2 / 2 = -1. _Source: RRB Group D CEN-02/2018 PYQ, Q.84._

Open this question →

How to practise

  1. Choose a Polynomials question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Quantitative Aptitude topics

MensurationMultiplicationNumber PropertiesSimple InterestSquares And RootsPercentagesNumber SystemRatio and Proportion