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Post-UTME Mathematics 2019 Objective — Question 26

Question 26 of 50 from the Post-UTME Screening (Post-UTME) Mathematics 2019 Objective paper, with the correct answer and a full explanation.

Simplify 5√18 - 3√72 + 4√50

A. 17√4
B. 4√17
C. 17√2Correct
D. 12√4

Explanation

5√18=15√2, 3√72=18√2, 4√50=20√2; 15√2-18√2+20√2 = 17√2.

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