Question
Simplify by writing each expression with positive exponents. Assume that all variables represent nonzero real numbers. See Example $5 .$$$\frac{\left(7^{4}\right)^{3}}{7^{9}}$$
Step 1
According to the rule of exponents, when we have a power to a power, we multiply the exponents. So, we have: $$ \left(7^{4}\right)^{3} = 7^{4 \times 3} = 7^{12} $$ Show more…
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