Factorise quadratic formula

Additional Maths

Factorisation - quadratic formula

If you are asked to solve a quadratic equation giving your answer to 2 decimal places then use the quadratic formula to solve it. (You know it won't factorise easily and so you won't be able to use the cross method and completing the square will be very messy)

Note: The quadratic formula is given to you on the formula sheet in the exam.

 

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