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\left(2a^{3}\right)^{3}\times \frac{1}{5a^{7}}
Use the rules of exponents to simplify the expression.
2^{3}\left(a^{3}\right)^{3}\times \frac{1}{5}\times \frac{1}{a^{7}}
To raise the product of two or more numbers to a power, raise each number to the power and take their product.
2^{3}\times \frac{1}{5}\left(a^{3}\right)^{3}\times \frac{1}{a^{7}}
Use the Commutative Property of Multiplication.
2^{3}\times \frac{1}{5}a^{3\times 3}a^{7\left(-1\right)}
To raise a power to another power, multiply the exponents.
2^{3}\times \frac{1}{5}a^{9}a^{7\left(-1\right)}
Multiply 3 times 3.
2^{3}\times \frac{1}{5}a^{9}a^{-7}
Multiply 7 times -1.
2^{3}\times \frac{1}{5}a^{9-7}
To multiply powers of the same base, add their exponents.
2^{3}\times \frac{1}{5}a^{2}
Add the exponents 9 and -7.
8\times \frac{1}{5}a^{2}
Raise 2 to the power 3.
\frac{8}{5}a^{2}
Multiply 8 times \frac{1}{5}.
\left(2a^{3}\right)^{3}\times \frac{1}{5a^{7}}
Use the rules of exponents to simplify the expression.
2^{3}\left(a^{3}\right)^{3}\times \frac{1}{5}\times \frac{1}{a^{7}}
To raise the product of two or more numbers to a power, raise each number to the power and take their product.
2^{3}\times \frac{1}{5}\left(a^{3}\right)^{3}\times \frac{1}{a^{7}}
Use the Commutative Property of Multiplication.
2^{3}\times \frac{1}{5}a^{3\times 3}a^{7\left(-1\right)}
To raise a power to another power, multiply the exponents.
2^{3}\times \frac{1}{5}a^{9}a^{7\left(-1\right)}
Multiply 3 times 3.
2^{3}\times \frac{1}{5}a^{9}a^{-7}
Multiply 7 times -1.
2^{3}\times \frac{1}{5}a^{9-7}
To multiply powers of the same base, add their exponents.
2^{3}\times \frac{1}{5}a^{2}
Add the exponents 9 and -7.
8\times \frac{1}{5}a^{2}
Raise 2 to the power 3.
\frac{8}{5}a^{2}
Multiply 8 times \frac{1}{5}.