Question

$2-[4-(3+6-2-(1+6-8))$

Answer 1

Explicación paso a paso:

$4 - (3 + 6 - 2 - ( - 1)) \\ 4 - (3 + 6 - 2 + 1) \\ 4 - (10 - 2) \\ 4 - 10 + 2 \\ - 6 + 2 \\ - 4$