please solve this question
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[Note - ^ means raised to the power. I can't write from my desktop]
2. (a) (1/5)^ -3 + (1/4)^ -2
=> (5 or 5/1)^3 + (4 or 4/1)^2
=> 5^3 + 4^2
=> 125 + 16 = 141
(b) (1/3)^ -3 x (3/4)^ -2
=> (3)^3 x (4/3)^2
=> 3^3 x 4^2/3^2
=>3^3-2 x 4^2 [ a^m /a^n = a^m-n]
=> 3 x 16= 48
(c) (5/7)^ -3 / (-4/7)^2
=> (7/5)^3 / (-4/7)^2
=> 7^3/5^3 x -7^2/ 4^2
=> 7^3+2/ 5^3 x 4^2
=> 7^5/ 5^3 x 4^2
=> 16,807/ 125 x 16 = 16,807/2,000 = in decimal form 8.4035
I HOPE THIS HELPS YOU OUT!!
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