Answer:
20
Explanation:
2 + 3² · (3 - 1)
= 2 + 3² · 2 -- (3 - 1 = 2)
= 2 + 9 · 2 -- (3² = 9)
= 2 + 18 -- (2 · 9 = 18)
= 20
2 + 3² * ( 3 -1) = 2 + 9 * 2
= 2 + 18
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