Year 12s: what will be the first way you research your future options? >>

WJEC C3/C4 8th/17th June 2016

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Reply 200

Ceridwen101

Original post by IrrationalRoot

Factorise.

it still wouldn't give the answer that you have given

Reply 201

chrissypie666

Original post by IrrationalRoot

Factorise.

While it is possible to simplify it, it's actually no more simpler than what the other thing. If this year is like any other previous years, either will be accepted

Reply 202

Sweat12

Anyone fancy chucking the mathemateg mark scheme on here because i cant get it. Would be brill!

Reply 203

IrrationalRoot

Original post by chrissypie666

While it is possible to simplify it, it's actually no more simpler than what the other thing. If this year is like any other previous years, either will be accepted

is certainly simpler than the other thing and the reason everything cancels nicely when you factorise it is because the examiners purposely made it like that. You will drop a mark at least for not factorising.

(edited 7 years ago)

Reply 204

IrrationalRoot

Original post by Ceridwen101

it still wouldn't give the answer that you have given

Well sorry to say this but that means you can't factorise correctly.

Reply 205

IrrationalRoot

Original post by Hydeman

Would it count if I took 6e^6x out and put the rest in brackets? Or would that not be considered fully simplified?

Not particularly because the simplification the examiners intended was for the 2s to cancel out nicely when you factorise the polynomial parts too. Just taking out 6e^6x doesn't really make it that much simpler but it's on the right lines.

Reply 206

chrissypie666

Original post by IrrationalRoot

Are you sure that's right? Wouldn't it go to 6e^6x (3x-2)^3 (2+(3x-2))? that seems much less simple than the original answer imho.

(edited 7 years ago)

Reply 207

Sweat12

Dont worry about me then, how do i get to the unofficial mark scheme? Or does no one have it?
Not the one that @IrrationalRoot did but 10 for effort anyway