Evaluate: 2{28} - 3{50} + {72}

Correct Answer is : 47−92{7} - 9 {2}7−92

Correct Answer is : 47−92{7} - 9 {2}7−92

Test Index

WAEC Mathematics 2019 Paper

Question : 10

Total: 50

Evaluate: 2

\sqrt{28} - 3\sqrt{50} + \sqrt{72}

Solution:

2 $\sqrt{28} - 3\sqrt{50} + \sqrt{22}$

4 $\sqrt{7} - 15\sqrt{2} + 6\sqrt{2}$

6 $\sqrt{7} - 9\sqrt{2}$

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