You want to satisfy
7 7 7 = 10
You can add, subtract, multiply and divide, use parentheses, square root, exponent and factorial. So, for example:
2^2 + 2^2 +2 = 10
Sqrt(4) + 4 + 4 = 10
8 + 8^0 + 8^0 = 10
You are also not allowed to manipulate the right side of the equation (e.g. 7^0 * 7^0 * 7^0 = 10^0).