(2³ - 1) + 5 = ?
Understand the Problem
The question is asking to solve the mathematical expression (2³-1)+5. This involves calculating 2 raised to the power of 3, subtracting 1 from that result, and then adding 5.
Answer
$12$
Answer for screen readers
The final answer is $12$.
Steps to Solve
- Calculate 2 raised to the power of 3
First, we need to calculate $2^3$.
$$2^3 = 2 \times 2 \times 2 = 8$$
- Subtract 1 from the result
Next, we subtract 1 from the result we found in the previous step.
$$8 - 1 = 7$$
- Add 5 to the result
Finally, we add 5 to the result obtained from the subtraction.
$$7 + 5 = 12$$
The final answer is $12$.
More Information
This type of problem is common in operations involving exponents and basic arithmetic. Understanding the order of operations is key to solving similar problems correctly.
Tips
One common mistake is forgetting to calculate the exponent first before performing other operations. Always remember to follow the order of operations: parentheses, exponents, multiplication and division (from left to right), and finally addition and subtraction (from left to right).
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