i need help with adding surds

what is 4√7 + 4√5
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1 Answer

?????? "surds" ??????

it look like 4*sqrt(7) +4*sqrt(5)or 4*[sqrt(7)+sqrt(5)]

sqrt(5)=2.23606797749979

sqrt(7)=2.6457513110645907

sum=4.88181928856438

4*=19.52727715425752
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