If you multiply a(b+c) you get ab +ac ((this is called Distribution)) BUT, the opposite is also true! Ab +ac = a(b+c) ((this is called factoring)) with 10x^2 + 15x we see that x is in both, so x(10x +15) and we see a 5 in common, so 5x(2x +3) If you multiply 5x(2x +3) we get 10x^2 +15x so you see that it checks out ok. 10x^2 + 15x = 5x(2x +3) = 10x^2 + 15x.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.