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d. (2/5)^9/(2/5)^5 = (2/5)^9-5 = (2/5)^4
e. 3^7 x 3^2/3^3 = 3^7+2-3 = 3^6
f. 5^5/5^2 x 5^3 = 5^5-2-3 = 5^0 = 1
g. 2^7 x 6^7/4^7 = 2^7 x (2.3)^7/4^7
= 2^7 x 2^7 x 3^7 / 4^7
= (2.2)^7 x 3^7/4^7
= 4^7-7 x 3^7
= 4^0 x 3^7
= 1 x 3^7
= 3^7
h. 6^7 x 3^3/2^7 = (2.3)^7 x 3^3/2^7
= 2^7 x 3^7 x 3^3/2^7
= 2^7-7 x 3^7+3
= 2^0 x 3^10
= 1 x 3^10
= 3^10
i. 10^6 x 4^2/25^3 x 8^3 = (2.5)^6 x (2^2)^2 / (5^2)^3 x (2^3)^3
= 2^6 x 5^6 x 2^4 / 5^6 x 2^9
= 2^6+4-9 x 5^6-6
= 2^1 x 5^0
= 2 x 1
= 2
j. 21^5/9^2 : (7/2)^2 = 21^5/9^2 x (2/7)^2
= (3.7)^5/(3^2)^2 x 2^2/7^2
= 3^5 x 7^5 x 2^2/ 3^4 x 7^2
= 3^5-4 x 7^5-2 x 2^2
= 3^1 x 7^3 x 2^2
= 3 x 2^2 x 7^3
2. Sederhanakan aljabar berikut ini.
