Igcse Model Questions Vol1 2022 Mathematics Question 5

Practice objective / multiple choice question 5 from the 2022 Igcse Model Questions Vol1 Mathematics examination.

Igcse Model Questions Vol1 2022 Mathematics Objective / Multiple Choice Medium Difficulty
Question 5 IGCSE_MODEL_QUESTIONS_VOL1 • 2022 • MATHEMATICS • objective

The quadratic equation \(x^{2} - kx + 12 = 0\) has two real roots such that one root is twice the other. (i) Find the value of \(k\). (ii) Find the sum of the squares of the two roots.

Answer Options

A. k = 3√6, sum of squares = 28
B. k = 2√6, sum of squares = 30
Correct Answer C. k = 3√6, sum of squares = 30
D. k = 3√5, sum of squares = 30
Correct Answer
C
Correct Option:
k = 3√6, sum of squares = 30

About This Question

This is Igcse Model Questions Vol1 2022 Mathematics Question 5. It is one of the objective questions from the 2022 Igcse Model Questions Vol1 Mathematics examination.

Difficulty level: Medium .

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