Question

$\sqrt{27} + \sqrt{12} =$
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Answer 1

Answer:

$\sqrt{27} = \sqrt{3 \times 3 \times 3} = 3 \sqrt{3} \\ \sqrt{12} = \sqrt{2 \times 2 \times 3} = 2 \sqrt{3} \\ 3 \sqrt{3} + 2 \sqrt{3} = 5 \sqrt{3} = \sqrt{25 \times 3} \\ therefore \\ \sqrt{75} \: or \: 5 \sqrt{3}$