Recent content by educatingrob

Annoyingly Id just typed out a long response and the session timed out when I went to post it Anyway, I managed to factorize (x-2y)^2-(2x-y)^2 to 3(y^2-x^2) via, as you posted introducing (-1), more parenthesis. i.e. (x)(x-2y)(-2y)(x-2y)(-1)(2x)(2x-y)(-1)(-y)(2x-y) The last...

Im completing Engineering Maths cover to cover in an attempt to get more familiar with maths as I finished my education many years ago without really understanding many basic maths concepts. This problem is at the back of the introduction to algebra. (x-2y)^2 - (2x - y)^2 Now I can expand...