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How will you evaluate the following expression?

90. How will you evaluate the following expression?

1. X^a-b
2. X^a - X^b
3. X^a+b
4. X^a*b

Answer

The correct answer is: A) X^a-b

Explanation

You can use the rule of dividing powers with the same base when you have the equation . According to the rule, when you divide two powers by the same base, you subtract the exponents: X^a-b.