-(-(-(-2))) is not a question, so it has no answer.
But if you'd like to clean it up and make it look less ugly, then you should notice that there are 4 minus-signs operating on the '2'. Every two minus-signs cancel each other, so 4 of them definitely result in total annihilation of all the minus-signs, and the whole revolting expression is equal to just<em> 2 </em> .
Trish is correct because whatever number starts the tree equals 48 anyway. The numbers that matters is if you follow through when factoring out the whole tree of 48.
