Answer:
Let's solve the expression step by step:
9² - 1 + 2(28) =
81 - 1 + 2(28) =
81 - 1 + 56 =
80 + 56 =
136
Now, let's divide the answer by 4:
136 ÷ 4 =
34
Therefore, the final result is 34.
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