Question

3 square root of 135 + 3 square root of 40

`3 √(135) / + 3 √(40)`
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Answer 1

9sqrt(15) +6sqrt(10)

Explanation:

3 sqrt (135) + 3 sqrt(40)

3 sqrt(9*15) +3 sqrt(4*10)

Remember that sqrt(ab) = sqrt(a) sqrt(b)

3 sqrt(9) sqrt(15)+ 3 sqrt(4) sqrt(10)

3*3 sqrt(15) +3*2sqrt(10)

9sqrt(15) +6sqrt(10)