Question

pls anyone solve it​

Answer 1

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Answer 2

Tip:-

Recall all the rule of exponents.

$\frac{25 \times {a}^{ - 4} }{ {5}^{ - 3} \times 10 \times {a}^{ - 8} }$

$= 25 \times {a}^{ - 4} \times \frac{1}{ {5}^{ - 3} \times 10 \times {a}^{ - 8} }$

$= {5}^{2} \times {a}^{ - 4} \times {5}^{3} \times \frac{1}{10} \times {a}^{8}$

$= {5}^{2 + 3} \times {a}^{ - 4 + 8} \times {5}^{ - 1} \times {2}^{ - 1}$

$= {5}^{5 - 1} \times {a}^{ 4} \times {2}^{ - 1}$

$= \frac{ {5}^{4} }{ 2 } a^4$

$= \frac{625}{2 } \ a^4$

Attachment source: Brainly