Question

4 – {(-2)² . (-3) – [ -11 + (-3) . (-4)] – (-1)} =

Answer 1

4-{(-2)².(-3)-[-11+(+12)]-(-1)}

4-{(-2)².(-3)-[+1]-(-1)}

4-{+4.(-3)-[+1]-(-1)}

4-{12-[+1]-(-1)}

4-{-12-0}

4+12+0

16