Questions and Answers
What is the primary condition for adding or subtracting powers?
The powers must have the same base
What is represented by the letter 'S' in the content?
The symbol for a variable
What operation is implied by the 'to add or subtract' phrase in the content?
Addition or subtraction
What is the purpose of the numbers '10' and '42' in the content?
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What is the main topic of the provided content?
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