exam Maths Puzzle Numerical Ability

(2x-1)(x+3)(3x+2)

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in need of help with:solve algebraically ln 2+ ln(x-6)=ln(x+2) A slow train leaves the station, 2 hrs later a fast train, with double the speed of the slow train, leaves the station and catches up with the slow train after traveling 180 mi. Find the speed of both trains.