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WAEC Mathematics 2017 Objective — Question 34

Question 34 of 50 from the West African Examinations Council (WAEC) Mathematics 2017 Objective paper, with the correct answer and a full explanation.

Simplify: √2(√6+2√2)-2√3

A. A. 4Correct
B. B. √3+4
C. C. 4√2
D. D. 4√3+4

Explanation

√2(√6+2√2)-2√3 = √12+2(2)-2√3 = 2√3+4-2√3 = 4.

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