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Proof of the quadratic formula using completing the square

Proof of the quadratic formula using completing the square

Subject: Mathematics

Age range: 14-16

Resource type: Worksheet/Activity

Last updated

26 May 2026

pptx, 183.76 KB
pptx, 183.76 KB

The resource is a powerpoint slide providing a step by step proof of the quadratic formula using completing the square. This is a great extension solution if students are confident in their ability to complete the square. It is nice as it links the two methods of finding solutions of x together.

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