Question
Simplify the expression
r3664
Evaluate
(21r6)−6
To raise a product to a power,raise each factor to that power
(21)−6(r6)−6
Evaluate the power
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Evaluate
(21)−6
Rearrange the numbers
26
Evaluate the power
64
64(r6)−6
Evaluate the power
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Evaluate
(r6)−6
Multiply the exponents
r6(−6)
Multiply the terms
r−36
64r−36
Express with a positive exponent using a−n=an1
64×r361
Solution
r3664
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Find the roots
r∈∅
Evaluate
(21r6)−6
To find the roots of the expression,set the expression equal to 0
(21r6)−6=0
Find the domain
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Evaluate
21r6=0
Rewrite the expression
r6=0
The only way a power can not be 0 is when the base not equals 0
r=0
(21r6)−6=0,r=0
Calculate
(21r6)−6=0
Rewrite the expression
(21r6)61=0
Cross multiply
1=(21r6)6×0
Simplify the equation
1=0
Solution
r∈∅
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