Скачать или смотреть Quadratic Formula - 3 Mistakes to avoid!

3 Common mistakes people make when they're using the quadratic formula.

Practise questions can be found here: https://mathskitchen.com/home/?utm_so...

Exams are approaching so now's a great time to be tackling a bit of revision of the quadratic formula for your higher GCSE Maths exam. In this video I look at three common mistakes.

I go into each in a little detail as well as running through a couple of examples to illustrate what I mean.

The mistakes I see people making are:

1. Getting the first part of the formula wrong when b is negative.
2. Not squaring negative numbers correctly.
3. Trying to do too much in one go. Best to go step by step.