Use the rule for order of operations to simplify the expression as much as possible:
8
(
2
⋅
5
−
4
)
+
4
(
6
⋅
9
−
2
)
=
\displaystyle {8}{\left({2}\cdot{5}-{4}\right)}+{4}{\left({6}\cdot{9}-{2}\right)}=
8
(
2
⋅
5
−
4
)
+
4
(
6
⋅
9
−
2
)
=
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