if you have a quadratic , e,g X^2 + x -1 do you need to show working using the formula to obtain method marks?
As I can just get the values from my calculator and write them down.
The answer books for OCR have small spaces for working so doubt i could even fit it in.
the mark scheme says "Attempt to solve quadratic" m1d* , so I'm guessing the formula is needed?
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c2 method marks quadratic watch
- Thread Starter
- 17-05-2015 10:51
- 17-05-2015 10:55
Write down the formula and sub in the values. Simplify it and then put it into the calculator.