given that: g(y)=2(3^3y)-5(3^2y)-9(3^y)+18
find values of y that satisfy g(y)=0 giving answers to 2 decimal places where appropriate
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- Thread Starter
- 16-05-2015 16:27
- 16-05-2015 16:55
If you show us your workings we'll be able to point you in the right direction
- 16-05-2015 17:32
- 16-05-2015 17:35
I believe this is from the June 2013 C2 paper?
If you notice, it is a slightly altered version of the equation you factorised in part b. Therefore, find the solutions for x from part b and then set 3^y equal to each of these values and you will get your answer!
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