√98 + √8.
This can be expressed as, √98 + √8 = √(2 x 49) + √(2 x 4)
The square root of 49 is 7, and the square root of 4 is 2. So the expression now becomes :-
7√2 + 2√2 = (7 + 2)√2 = 9√2.
As √2 = 1.41421 (5dp) then the answer is :-
9 x 1.41421 = 12.72792
Use of a calculator gives 9.89949 + 2.82843 = 12.72792
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9.899
Square Root of 50: 7.0710678118654752440084436210485Square Root of 8: 2.82842712474619009760337744841942.8284271247461900976033774484194+7.0710678118654752440084436210485-------------------------------------------------------------9.8994949366116653416118210694674
17 plus 8 is 25, and the square root of 25 is 5. Alternatively, the square root of 17 is about 4.123; adding 8 to that gives about 12.123.
8 + 2 = 10 =====
sqrt(1) + sqrt(1) + sqrt(64) = +/- 1 +/- 1 +/- 8 positive square root is 10 negative square root is -10 By permutating the +/- it could also be +8, -8 ,