Evaluate (2^-20-2^-22)/(2^-21)

Math
Move to the numerator using the negative exponent rule .
Simplify each term.
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Rewrite the expression using the negative exponent rule .
Raise to the power of .
Rewrite the expression using the negative exponent rule .
Raise to the power of .
To write as a fraction with a common denominator, multiply by .
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
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Multiply and .
Multiply by .
Combine the numerators over the common denominator.
Subtract from .
Raise to the power of .
Cancel the common factor of .
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Factor out of .
Cancel the common factor.
Rewrite the expression.
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
Mixed Number Form:
Evaluate (2^-20-2^-22)/(2^-21)

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