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= 5^6 x 5^-3 x 5^4
= 5^7
= 78.125
2) 3(a^3.b^9.c^6)^(1/3) / a^(1/2).b^(1/2).c
= 3ab^3c^2 / a^(1/2)b^(1/2)c
= 3a^(1/2)b^(5/2)c
3) {(x^(1/2) y^(3/2) z^(5/2)}^2 / x^2.z^(-2)
= xy^3z^5 / x^2.z^(-2)
= y^3z^7 / x
= x^(-1)y^3.z^7
jawaban soal nomer 2
jawaban soal nomer 3