It depends. Is the entire expression squared or just radical 7?
Assuming the latter, then 6 + (√7)^2 = 6 + 7 = 13.
The given expression can be simplified to: 8x squared +9
The given expression can be simplified to: 3X squared +27
-1?
4 radical 6
The expression cannot be simplified.
The given expression can be simplified to: 8x squared +9
76
The given expression can be simplified to: 3X squared +27
-1?
4√3 + 7√3 = (4 + 7)(√3) = 11√3
1 squared radical 40 is equal to 1 squared radical (4 x 10), and this become 2 squared radical 10. By adding 2 squared radical10 with 3 squared radical 10 we get 5 squared radical 10.
4 radical 6
5/(8 + √7) = (40 - 5√7)/57 is the rationalised equivalent.
There is an ambiguity whether you square the sum of a plus b, or only b. In any case, I don't think you can simplify this expression.
The expression cannot be simplified.
It is a quadratic expression in the variable x.
It is the length of the slope of a right cone.