Well b-a=-(a-b) so you have
any ideas from there?
By the way it's not an equation.
OK, I need help with two pretty basic questions. I keep making the same stupid mistakes. Please help!
Solve to the smallest equation.
1. (a-b)c^{2} + (b-a)c^{4}
My working out so far:
= c^{2} [(a-b)+(b-a)c^{2})]
... then I don't know what to do. I know the answer is c^{2} (a-b), but how do I get there?
2. (x-y)^{2 }-z^{2} / (x+z)^{2 }-y^{2 So it occurs to me to use those math equations like following: } x^{2} +2xy +y^{2} -z^{2} / x^{2} + 2xz + z^{2} -y^{2 }And then what? I'm not very good at maths...