Looks good to me. I'd do the terms a bit different, though.My machine learning text book tells me that I can perform this transformation by "multiplying out the brackets". Can someone show the intermediary steps for this please?
View attachment 20422
David
Looks good to me. I'd do the terms a bit different, though.
[math](a + b + c)^2 = a^2 + b^2 + c^2 + 2ab + 2ac + 2bc[/math]
I just find it easier to remember all the terms this way.
-Dan
No one has actually shown the intermediate steps yet, so I will. To make it easier to type, I'll change the names of the variables:My machine learning text book tells me that I can perform this transformation by "multiplying out the brackets". Can someone show the intermediary steps for this please?
View attachment 20422
David
Interestingly, if you knew that factoring would be useful, you might want to start out with:Thanks yes that helps. I think part of the reason they put it in that order is because on the next step they simplify...
[MATH]...2vxu - 2vxt...[/MATH]
to
[MATH]...2vx(u-t)...[/MATH]
Thanks again.