Let x be a real numbe such that \(625^x=9\). What it \(125^x\) in radical form?
625^x = 9
(5^4)^x = 9 take each side to the 3/4 power
(5^4)^(3/4 * x) = 9^(3/4)
(5^3) ^x = 9^(3/4)
125^x = 4√(9^3)
125^x = 4√729
