Answer
$32$
Work Step by Step
Recall, in order to solve problems involving order of operations, we use the PEMDAS rule.
First Priority: P - parentheses and other grouping symbols
Second Priority: E - exponents
Third Priority: M/D - Multiplication or division, whichever comes first from the left to the right
Fourth Priority: A/S - Addition or subtraction, whichever comes first from the left to the right
Apply the exponents first, and then multiply to obtain:
$=7(-2)(-2) -6(-2)-8
\\=7(4)- (-12)-8
\\=28-(-12)-8$
Add/subtract from the left to the right to obtain:
$=28+12-8
\\=40-8
\\=32$
