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\left(x^{15}y^{1}z^{-7}\right)^{4}
Use the rules of exponents to simplify the expression.
1^{4}\left(x^{15}\right)^{4}\left(y^{1}\right)^{4}\left(z^{-7}\right)^{4}
To raise the product of two or more numbers to a power, raise each number to the power and take their product.
x^{15\times 4}y^{4}z^{-7\times 4}
To raise a power to another power, multiply the exponents.
x^{60}y^{4}z^{-7\times 4}
Multiply 15 times 4.
x^{60}y^{4}\times \frac{1}{z^{28}}
Multiply -7 times 4.
\left(x^{15}y^{1}z^{-7}\right)^{4}
Use the rules of exponents to simplify the expression.
1^{4}\left(x^{15}\right)^{4}\left(y^{1}\right)^{4}\left(z^{-7}\right)^{4}
To raise the product of two or more numbers to a power, raise each number to the power and take their product.
x^{15\times 4}y^{4}z^{-7\times 4}
To raise a power to another power, multiply the exponents.
x^{60}y^{4}z^{-7\times 4}
Multiply 15 times 4.
x^{60}y^{4}\times \frac{1}{z^{28}}
Multiply -7 times 4.