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# Quadratics problem watch

1. find the values of x if 2x^2+9x+6=0

I can't factorise it and completing the square doesn't really work. What other method can I use?
3. (Original post by lionking)
Its a non calculator paper and it ends up with surds. Is there no other way?
4. I think in C1, the question would say something such as Leave surds in your answer.
5. What's the problem with completing the square?

Square-rooting both sides:
6. 2x²+9x+6=0 is written in the form ax²+bx+c=0.

So,
a=2
b=9
c=6

Using the quadratic formula doesn't necessarily mean you need a calculator.

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