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Help - STEP I Question

step question.JPGThe first part is fairly straightforward but I'm a bit stuck with the second part.
I know that you have to consider the discriminant, but i cant seem to get anywhere and end up with a horrible Quartic Equation.
Reply 1
You shouldn't get a quartic. Post your workings do I can see what you have done?
How have you ended up with a quartic?


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Reply 3
We're not going to magically see what you've done, you need to post your working. :tongue:
Your method sounds right, try doing the algebra again.

For reference:

Spoiler

Original post by Forecast
Your method sounds right, try doing the algebra again.

For reference:

Spoiler



They haven't listed a method, they've literally just suggested an approach, also listing the full solution is a bit counter productive


Posted from TSR Mobile
Original post by Forecast
Your method sounds right, try doing the algebra again.

For reference:

Spoiler


Unless im high Implications r wrong way as they said if c^2 then so word your argument carefully. You probably wouldn't get docked in this case I think.


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Original post by drandy76
They haven't listed a method, they've literally just suggested an approach, also listing the full solution is a bit counter productive


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Op said considering discriminant


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Original post by physicsmaths
Op said considering discriminant


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I guess in this case that's pretty much all you need to know tbf


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(edited 7 years ago)

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