s=8+(-4)2
Remove parentheses.
s=8-42
Cancel the common factor of 8-4 and 2.
Factor 2 out of 8.
s=2⋅4-42
Factor 2 out of -4.
s=2⋅4+2⋅-22
Factor 2 out of 2⋅4+2⋅-2.
s=2⋅(4-2)2
Cancel the common factors.
Factor 2 out of 2.
s=2⋅(4-2)2(1)
Cancel the common factor.
s=2⋅(4-2)2⋅1
Rewrite the expression.
s=4-21
Divide 4-2 by 1.
s=4-2
s=4-2
s=4-2
Subtract 2 from 4.
s=2
s=2
Solve for s s=(8+(-4))/2