3x - 3/x(x-3) why cant you cancel out the x after the 3 with the x on the denominator before the (x-3)? is it cause the one on top is substracting while one on bottom is multyplying?
another question, 1/(1 + 1/2) those perenthesies arent there I just added them cause its not 1 plus one half but the one is above an entire denominator. why is the awnser 2/3 and not 3? cant you solve those kinds of problems by making the equation 1 (one voer one) + 2 (one over one half)?
and lastly for now, if you have a whole numerator of numebrs such as a^4 + b^3 + c^5/A^3+b^2+c^3 cabt you just subtract the denominator exponent from the numerator ones making it a+b+c^2 and if that is the case can you only do that if they numebrs corresponding are doing the same thing like adding/suibtracting or multiplying or cna you mix it like if the bottom had a^3b^2 and not a^3+b^2?
-= Double Post =-
oh and I forgot to add, if finding the long leg of a triangle is a suqared plus b squared equals c squared, what if its not a triangle with a straight 90 degree legs, but has two cross (z axis) ones?