Neco 2018 Mathematics Question 26

Practice objective / multiple choice question 26 from the 2018 Neco Mathematics examination.

Neco 2018 Mathematics Objective / Multiple Choice Medium Difficulty
Question 26 NECO • 2018 • MATHEMATICS • objective

The quadratic equation \(x^{2}-kx+12=0\) has two real roots whose difference is 2. Find the value of \(k\) and then determine the sum of the squares of the roots of the equation \(x^{2}-(k+3)x+20=0\).

Answer Options

A. 21+12\\sqrt{7}
Correct Answer B. 21+12\sqrt{13}
C. 33+12\\sqrt{13}
D. 21-12\\sqrt{13}
Correct Answer
B
Correct Option:
21+12\sqrt{13}

About This Question

This is Neco 2018 Mathematics Question 26. It is one of the objective questions from the 2018 Neco Mathematics examination.

Difficulty level: Medium .

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