Using { }, not [ ], to group things. In Math it is perfectly OK to use [ ], but on Algebra.com it causes some problems.
Use parentheses, including nested parentheses (parentheses inside of parentheses), to make the meaning of the problem clear.
If the problem is , start by rewriting it in exponential form: Since this is so close to 7 I think you are supposed to use 7. (If not then you will have to use the quadratic formula on the equation with this very long decimal!?)
Subtracting 7 from both sides:
Factoring:
The only way for a product to be zero is if one of the factors is zero. So: or
Solving these we get: or
(