Question

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Answer 1

Answer:

9) (2^7)^3 * 7^3/8^3*7

2^21*7^3

(2)^3* 7^1

=2^21-3* 7^3-1

=2^18*7^2

ii)25*125* x^3/10^3*x^8

= (5)^2*(5)^3*(x)^3

(2*5)^3*x^8

= (5)^2+3*x^3-8

2^3*5^3

= (5)^5-3*x^-5/2^3

= (5)^2

2^3*x^5