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Apparently there is something wrong with the Ext2 Moriah. I would say hold off on downloading it for the moment till I have figured it out and fixed it.

A common question is how does the 16 become a 6? It is because (z+1/z)2=z2+2+1/z2 and 5(2)+6=16

Well z can’t be 0 so you can get rid of the z2 and 5y2-11y+6=0, etc

Just looking at the coefficients - they are symmetrical and so instantly you can see that it is reducible quadratics. Just divide by z2 and regroup Like z2(5(z2+1/z2)-11(z+1/z)+16) and let y=z+1/z Then z2(5y2-11y+6), etc.

With 3 more papers in https://community.boredofstudies.org/threads/2023-school-trial-papers.404700/#post-7492134 now we can get it up to 300 Kinross Wolaroi 2023 trial: Q7, 12a, 14a, 14d Girraween 2023 trial: Q4, 5 NOW IT IS 300 But why stop there? Girraween 2023 trial: Q13b, 13c, 14...

Moriah 2023 Ext 2 trial is at https://community.boredofstudies.org/resources/moriah-2023-mathematics-extension-2-trial.20317/ now and added to post #7 There is a new ext. 2 zip with 15 now. But when it was 13 and 14 it appears that I forgot to put the Kinross Wolaroi into it. So I deleted those...

Moriah 2023 Mathematics Extension 2 trial

Fort Street Mathematics Extension 1 trial 2023 is at https://community.boredofstudies.org/resources/fort-street-extension-1-trial-2023.20316/ It is added to post #7 and there is a new ext. 1 zip

Fort Street Extension 1 trial 2023

Moriah Extension 1 trial 2023 is at https://community.boredofstudies.org/resources/moriah-mathematics-extension-1-trial-2023.20314/ It is added to post #7 and there is a new ext. 1 zip

Moriah Mathematics Extension 1 trial 2023

Solutions to the Normanhurst Boys 2023 Extension 2 trial is at https://community.boredofstudies.org/resources/solutions-to-normanhurst-boys-extension-2-trial-2023.20313/ It is added to post #7

Solutions to Normanhurst Boys Extension 2 trial 2023 Paper is at https://community.boredofstudies.org/resources/normanhurst-bhs-2023-mathematics-extension-2.20294/

Girraween Mathematics Extension 2 trial 2023 is at https://community.boredofstudies.org/resources/girraween-mathematics-extension-2-trial-2023.20312/ . It is added to post #7

Girraween Mathematics Extension 2 trial 2023

Kinross Wolaroi 2023 Mathematics Extension 1 is at https://community.boredofstudies.or...roi-mathematics-extension-1-trial-2023.20311/ Added to post #7 and there is a new Ext. 1 zip

Kinross Wolaroi Mathematics Extension 1 trial 2023

Well it's not what you know but who you know. I know lots of aliens who live on the Trial Paper Planet where trial papers grow on trees. They pick them off and send them to me in UFO spaceships. I let dan964 know about this thread. He was the first person to respond in this thread so he knows...

Kinross Wolaroi Mathematics Extension 2 2023 trial is at https://community.boredofstudies.org/resources/2023-kinross-wolaroi-ext-2-trial.20310/ Added to post #7

2023 Kinross Wolaroi Ext 2 trial