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Question 2 (Or 1st) - CBSE Class 10 Sample Paper for 2019 Boards - Solutions of Sample Papers for Class 10 Boards

Last updated at Dec. 16, 2024 by Teachoo

Question 2 (OR 1 st question)

Find the value of k, for which one root of the quadratic equation kx 2 – 14x + 8 = 0 is 2

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Question 2 (OR 1st question) Find the value of k, for which one root of the quadratic equation kx2 – 14x + 8 = 0 is 2 Given that 2 is a root of the equation So, it must satisfy the equation Putting x = 2 in the equation kx2 – 14x + 8 = 0 k(2)2 – 14(2) + 8 = 0 k × 4 – 28 + 8 = 0 4k = 28 – 8 4k = 20 k = 20/4 k = 5 So, k = 5
  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

    3. CBSE Class 10 Sample Paper for 2019 Boards

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CBSE Class 10 Sample Paper for 2018 Boards →
Class 10
Solutions of Sample Papers for Class 10 Boards

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo