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Post-UTME Mathematics 2013 Objective — Question 72

Question 72 of 100 from the Post-UTME Screening (Post-UTME) Mathematics 2013 Objective paper, with the correct answer and a full explanation.

Simplify (2-√3)³

A. 10-9√3
B. 8-3√3
C. 26-15√3Correct
D. 26-9√3

Explanation

(2-√3)³ = 8 - 3(4)(√3) + 3(2)(3) - 3√3 = 8-12√3+18-3√3 = 26-15√3.

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