Question

$3 \sqrt{45} - \sqrt{125} + \sqrt{200} - \sqrt{50}$
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Answer 1

3√45 -√125 +√200-√50

=> 3√(9×5) -√(25×5) +√(100×2) -√(25×2)

=>9√5 - 5√5 + 10√2 - 5√2

=>4√5 + 5√2

=>√2√5(2√2+√5)

=>√10(2√2+√5)

Cheers!