Completing the square - solve in surd form question GCSE maths level 8

This video is all about how to complete the square and forms part of the playlist on completing the square. I've also added it to GCSE Higher revision.

The question is around level 8 GCSE mathematics:

Solve, leaving your answer in surd form xsquared + 6x + 20 = 0. The first part of the question also asks us to write in the form (x + p)squared + q.

I hope the video helps and please do leave a comment - thanks!

or click here for a limited 50% discount!:

The course contains around 3 hours of video, quizzes and a copy of my book 'How to get an A in maths.' All the way through to GCSE and just in time for revision.

Visit playlists to help you get more from your studies

GCSE - everything you need to know to get great grades

How to solve linear equations

.. and many more.

Please also add any suggestions for future videos on my Google+ page

[nickb]

Hi sir, I find your videos very helpful. Could u pliz help m on how to calculate the area bordered by the curve and x and y axes on a quadratic graph by means of counting tiny boxes multiplied by x and y scale. That's just a rough idea of the formula some lecturer taught m but I've forgotten it. There's also a 10 which divides or devided by x and y scales involved, I just can't recall.

[stephenbarker]

not my favourite method of doing quadratics