Question

3) Simplify 2√45 + 3√20​

Answer 1

$answer \\ \\ 2 \sqrt{45} + 3 \sqrt{20 } \\ \\ 2 \times 3 \sqrt{5} + 3 \times 2 \sqrt{5} \\ = 6 \sqrt{5} + 6 \sqrt{5 } \\ 12 \sqrt{5}$

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