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Let's solve the given expression:

\[
(8 \times 10^6) + (4 \times 10^7)
\]

### Step 1: Express each term in the same power of 10.
We need to express both numbers with the same power of 10 for easy addition. Let's convert \(4 \times 10^7\) to have the same exponent as \(10^6\):

\[
4 \times 10^7 = 40 \times 10^6
\]

### Step 2: Add the two terms.
Now that both terms are expressed as powers of \(10^6\), we can add them directly:

\[
(8 \times 10^6) + (40 \times 10^6) = (8 + 40) \times 10^6 = 48 \times 10^6
\]

### Step 3: Convert to the required form.
This matches the format of the answers. However, none of the options match exactly \(48 \times 10^6\). Let's rewrite \(48 \times 10^6\) in scientific notation:

\[
48 \times 10^6 = 4.8 \times 10^7
\]

Therefore, the correct answer is:

\[
\boxed{4.8 \times 10^7}
\]

Would you like more details or have any questions?

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Here are 5 related questions to expand your understanding:
1. How would you simplify \( (5 \times 10^5) + (7 \times 10^6) \)?
2. How do you multiply two numbers in scientific notation, like \( (3 \times 10^4) \times (2 \times 10^5) \)?
3. What is the difference between standard form and scientific notation?
4. How would you subtract \( (6 \times 10^7) - (2 \times 10^6) \)?
5. How does adding and subtracting numbers in scientific notation differ from multiplying or dividing?

**Tip:** When adding or subtracting in scientific notation, ensure the powers of 10 are the same before combining the coefficients.

Learn how to solve the scientific notation problem (8 × 10^6) + (4 × 10^7) with a detailed step-by-step solution. This problem demonstrates how to add numbers with powers of ten, suitable for students in Grades 8-10.

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