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It depends. Is the entire expression squared or just radical 7?Assuming the latter, then 6 + (√7)^2 = 6 + 7 = 13.
factor the 18. 18=2x3x3. Take out the 3 because it is squared. 5x3 radical 2=15radical2
6 radical 2
Just keep dividing, in this case, by squared numbers until what is under the radical is not so divisible.sqrt(5850)factor under radicalsqrt(15^2 * 26)bring out 1515sqrt(26)========
2 radical 11 the square root of 44. 44/2 = 22 radical 2 x 22 radical 2 x 2 x 11 Since 2 is under the radical twice you can take it out 2 radical 11