
The expression is
.
Distribute terms using distributive property:
.
(Distribute 8)
(Distribute
)
(Multiply:
)
(Multiply:
)
(Multiply:
)
(Multiply:
)
Rearrange and group like terms using commutative property of addition:
.

Combine like terms using distributive property:
.

(Subtract:
)
(Subtract:
)
The simplified expression is
.