This video is an example of how to work with algebraic equations. In this example, the equation needs to be manipulated to find the value of x and y. It looks a little tricky at first, but is fairly straightforward once you complete the expansion.
The question is aimed at GCSE maths grade 7+ non calculator paper.
x and y are positive integers such that (3- √x)^2=y-6√5
Work out the value of x and the value of y.
Watch on YouTube
I hope it becomes a little clearer as you work through the quick test videos, before moving on to the higher levels. They do take a bit of a leap forward, although should be OK if you have viewed the earlier ones.
If you would like to find out more try these!
Please do leave a comment below if you are not sure. Alternately you can view my YouTube channel and leave a comment there – I’ll always try to respond as quickly as possible.