a) 25^2*(1/5)^-1 = (5^2)^2 * 5^1 = 5^4 * 5^1 = 5^(4 +1) = 5^5
b) (0,2)^-4*125^-3:5^4= (1/5)^(-4) * (5^3)^(-3) : 5^4 = 5^4 * 5^(-9) : 5^4 = 5^(4 +(-9) - 4) = 5^(-5 - 4) = 5^(-9)
a) 25^2*(1/5)^-1 = (5^2)^2 * (5^-1)^-1=
=5^4 * 5^1 = 5^(4+1)=5^5
b)(0,2)^-4 *125^-3 : 5^4 =
= (5^-1)^-4 * (5^3)^-3 : 5^4=
=5^4 * 5^-9 : 5^4 =
=5^(4-9-4)=
=5^-9
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a) 25^2*(1/5)^-1 = (5^2)^2 * 5^1 = 5^4 * 5^1 = 5^(4 +1) = 5^5
b) (0,2)^-4*125^-3:5^4= (1/5)^(-4) * (5^3)^(-3) : 5^4 = 5^4 * 5^(-9) : 5^4 = 5^(4 +(-9) - 4) = 5^(-5 - 4) = 5^(-9)
a) 25^2*(1/5)^-1 = (5^2)^2 * (5^-1)^-1=
=5^4 * 5^1 = 5^(4+1)=5^5
b)(0,2)^-4 *125^-3 : 5^4 =
= (5^-1)^-4 * (5^3)^-3 : 5^4=
=5^4 * 5^-9 : 5^4 =
=5^(4-9-4)=
=5^-9