Question

Make questions number 8

Answer 1

25*a^ -4 / 5^ -3 x 10 x a^ -8

= 25 x125 x a^8 / 10 x a^4

= 625 a^4 / 2

Answer 2

25 * a^-4 / 5^-3 * 10 * a^-8

= 5^2 * 5^3 / 10* a^-8 * a^ 4

= 5^5 / 10 * a^-4

= 625 / 2 * a^-4

= 625a^4 / 2

OPTION B


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