What identity can be used to rewrite the expression 8x^3+243

To rewrite this expression we can use the sum of cubes identity: . Notice that we can express 8 as a cube: , so we can rewrite our first term as . Since our second term does not have a exact cubic root, we must rewrite as . Now we have  and , so lets use the sum of cube identity to rewrite our expression:





We can conclude that we can use the sum of cubes identity to rewrite the expression 8x^3+243 as 

A’b’c’ are the coordinates to the new location of the transformed triangle abc. find the distance between the coordinates points to use for your calculations.