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Countdown to Exams - Day 64 - Completing the square and solving quadratics

Countdown to Exams - Day 64 - Completing the square and solving quadratics

In today's blog post we are looking at the more complex topic of Completing the square and then using this information to solve quadratics. To complete the square you need to think about halving the coefficient of b, this will form the main part of your completed square. There will be another amount (half the coefficient of b then squared). This will need to be combined with your c value to create a number. From there you have a relatively straightforward equation to solve (remember you are looking for two answers). 

Completing the square will also reveal the turning point of the quadratic graph if you were to plot it.

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