We are given the following operation:
[tex]-1-2(-4\times2)[/tex]To solve this operation we will first solve the product inside the parenthesis. Since the factor has opposite signs the result must be negative. Solving the operations:
[tex]-1-2(-8)[/tex]Now we solve the produce to the right since the factors have the same sign the result must be positive:
[tex]-1+16[/tex]Now we solve the final subtraction:
[tex]15[/tex]Therefore, the result of the operation is 15.