In my trial i was given this question worth 3 marks and got it wrong how do i solve it.
The sum of the first two terms of a geometric series is 18 and the sum of the third and fourth of the series is 72. Show that there are two possible series which meet the criteria above and write down the first four terms of each series.
The sum of the first two terms of a geometric series is 18 and the sum of the third and fourth of the series is 72. Show that there are two possible series which meet the criteria above and write down the first four terms of each series.