1. Stated problem: Calculate the value of expression 7.a) $5^2 \cdot (9 - 2^3) + \frac{2^3}{4}$.
2. Formula and rules: Use order of operations (parentheses, exponents, multiplication/division, addition/subtraction).
3. Calculate powers:
$5^2 = 25$
$2^3 = 8$
4. Calculate inside parentheses:
$9 - 8 = 1$
5. Multiply:
$25 \cdot 1 = 25$
6. Calculate division:
$\frac{2^3}{4} = \frac{8}{4} = 2$
7. Add results:
$25 + 2 = 27$
Final answer: $27$
Calculate Expression A17Fe6
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