Yuseph
Junior Member
- Joined
- Aug 5, 2020
- Messages
- 68
- why does x goes into x3 only 2 times ?Yo,
View attachment 21132
Ok two questions. Thanks
- why does x goes into x3 only 2 times ? Why is the answer x2 and not x3 ?
- why does the 1st substraction give - x2y ?? And not + x2y ? Can you also explain why the 2nd substraction give xy2 instead of -xy2
Plz explain as if I was a 8y old kid.
Now ive never seen anywhere than 0 minus sth equal a minus result. Since 0 is not taking away anything. Whats the explanation ?
I think you are not working out these example problems with "pencil & paper".View attachment 21135
Its actually the author who confused me when he wrote x into x3 goes x2.
Put like that it should goes 3 times. x3 = x time x time x.
But thats x3 divided by x which is different.
Regarding 0 - x yeah my focus shut down after so many hours on math. Of course 0 - 5 will give -5
Turns out that as im writing this i saw the two others are even worse. Whats x into -x2y goes -xy. And x into xy2 goes y2. ?
He gave no theory about that.
Probably the author foolishly assumed that by the time you were doing problems like this you would know what things like x3, x2y, and xy2 meant! (And, please, if you don't want to use "tex" at least use ^ to indicate powers, x^3 and xy^2, and not "x3" and "xy2".)View attachment 21135
Its actually the author who confused me when he wrote x into x3 goes x2.
Put like that it should goes 3 times. x3 = x time x time x.
But thats x3 divided by x which is different.
Regarding 0 - x yeah my focus shut down after so many hours on math. Of course 0 - 5 will give -5
Turns out that as im writing this i saw the two others are even worse. Whats x into -x2y goes -xy. And x into xy2 goes y2. ?
He gave no theory about that.
or shefor example, when the author says divide 3 into 5, he just means [MATH]\frac{5}{3}[/MATH]