1) (3(x-a))/(7(a-x)) = -3/72) (7a^2 - 21ab)/(24b^2-8ab) = a(7a-21b)/8b(3b-a) = -7a/24b3) ((2x-3y)^2)/(6y-4x) = (4x^2 -12xy + 9y^2)/(6y-4x) = (2x-3y)^2/(3(2y-x)) = (2x-3y)^2/(3(2y-x))
1) (3(x-a))/(7(a-x)) = -3/7
2) (7a^2 - 21ab)/(24b^2-8ab) = a(7a-21b)/8b(3b-a) = -7a/24b
3) ((2x-3y)^2)/(6y-4x) = (4x^2 -12xy + 9y^2)/(6y-4x) = (2x-3y)^2/(3(2y-x)) = (2x-3y)^2/(3(2y-x))