Question

3.Using laws simplify and express in exponential form [( 72 ): X 7] + 78​

Answer 1

Answer:

$\frac{1}{ {7}^{3} }$

Step-by-step explanation:

$({({7}^{2})}^{3} \times {7}^{3}) \div {7}^{8} \\ ( {7}^{2 + 3} ) \div {7}^{8} \\ {7}^{5} \div {7}^{8} \\ {7}^{5 - 8} \\ {7}^{ - 3} \\ \frac{1}{ {7}^{3} }$

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