30 POINTS!!!!!! Solve for u, where u is a real number. Square root of u+7=9 If there is more than one solution, separate them with commas. If there is no solution, click on &quo…

Question

30 POINTS!!!!!!

Solve for u, where u is a real number. Square root of u+7=9 If there is more than one solution, separate them with commas.
If there is no solution, click on "No solution".

I just need to know if I am right. I got u= square root of 2 and it could be both + or -

Answer 1

u=square root of 4

Square root of 4 = 2

2+7=9