mike1016 mike1016

21-09-2016
Mathematics

Answered

what is the sum of sqrt 18 plus sqrt 72

Verified Answer :

Anonymous Anonymous

21-09-2016

18=233=23²
72=22233=2³ 3²

√18+√72=√(23²) +√(2³ 3²)=3√2 + 3*2√2=3√2 + 6√2=9√2

Answer: √18+√72=9√2

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