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We are asked to evaluate \((8 \times 10^4) + (3 \times 10^4)\) and provide the answer in standard index form.

### Step-by-step solution:
1. Both terms have the same power of \(10^4\), so we can factor that out:
   \[
   (8 \times 10^4) + (3 \times 10^4) = (8 + 3) \times 10^4
   \]
2. Add the coefficients:
   \[
   8 + 3 = 11
   \]
3. Now, multiply the result by \(10^4\):
   \[
   11 \times 10^4
   \]

### Final Answer:
The result in standard index form is:
\[
1.1 \times 10^5
\]

Would you like further details on the steps? Here are some related questions you might find useful:

1. How do you simplify expressions with the same powers of 10?
2. What is the standard index form and how is it used?
3. How would the process change if the powers of 10 were different?
4. What are some rules for multiplying and dividing numbers in scientific notation?
5. How can this method be applied to larger numbers in standard form?

**Tip:** When adding numbers in scientific notation, make sure the powers of 10 are the same before performing the addition.

Work out (8 × 10^4) + (3 × 10^4). Give your answer in standard index form.

Learn how to solve (8 × 10^4) + (3 × 10^4) in standard index form. This problem explains how to add numbers in scientific notation with the same powers of 10. Suitable for Grades 9-11 students.

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