Question

25×t-⁴ / 5-³ ×10×t-⁸​

Answer 1

Answer is in the attachment...hope it is correct

Answer 2

$\sf \implies \: \dfrac{25 \times t ^{ - 4} }{ {5}^{ - 3} \times 10 \times {t}^{ - 8} } \: \: \\ \\ \sf \implies \: \dfrac{ {5}^{2} \times {5}^{ 3} \times \cancel{ {t}^{8} }}{2 \times 5 \times \cancel { {t}^{4}} } \: \: \: \: \: \: \: \\ \\ \sf \implies \: \frac{ {5}^{(2 + 3)} \times {t}^{4} }{2 \times \cancel 5} \: \: \: \: \: \: \: \: \: \\ \\ \sf \implies \: \dfrac{ {5}^{4} \times {t}^{4} }{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \sf \implies \: \frac{(5 \times t) ^{4} }{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$