Question

9√5 - 4√5 +√125 सोपे रुप द्या​

Answer 1

30√5

$= 9 \sqrt{5} - 4 \sqrt{5} + \sqrt{125} \\ = 5 \sqrt{5} + \sqrt{25 \times 5} \\ = 5 \sqrt{5} + 25 \sqrt{5} \\ = 30 \sqrt{ 5}$

we had subtracted 4√5 from 9√5

because

we have taken √5 comman so then we subtracted

√5(9-4) +√125

5√5 + √125

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