1. The problem statement, all variables and given/known data
i try to do multiplication of two's complement number. I'm using straightforward method, which
give me wrong answer..
i know i can't use this method.. but.. i just want to know why..
why i can't use this method?
3. The attempt at a solution
1001 x 0101 = 0101101 which is 45.. it should be -35..