Simplfy this expression.

–12 ÷ 3 • (–8 + (–4)2 – 6) + 2

–12 ÷ 3 • (–8 + (–4)2 – 6) + 2

–12 ÷ 3 • (–8 + (–8) – 6) + 2
–12 ÷ 3 • (–22) + 2
–4 • (–22) + 2
88 + 2
90

However, I suspect that you meant
-12 ÷ 3 • (-8 + (-4)^2 - 6) + 2
-12 ÷ 3 • (-8 + 16 - 6) + 2
-12 ÷ 3 • 2 + 2
-4 • 2 + 2
-8 + 2
-6