Q. Which expression is equivalent to (22)42−4?210121412121212
Simplify Denominator: Simplify the denominator.The denominator is (22)4, which is a power of a power. According to the rules of exponents, when you raise a power to a power, you multiply the exponents.(22)4=22×4=28
Rewrite Expression: Rewrite the original expression with the simplified denominator.Now we have the expression (2−4)/(28).
Apply Quotient Rule: Apply the quotient rule for exponents.When dividing like bases with exponents, you subtract the exponents.2−4/28=2−4−8=2−12
Convert Negative Exponent: Convert the negative exponent to a positive exponent.A negative exponent means that the base is on the wrong side of the fraction line. To make the exponent positive, we can rewrite the expression as 1 over the base raised to the positive exponent.2−12=2121
Compare with Options: Compare the result with the given options.The expression 2121 matches one of the given options, which is 2121.
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