The expression below is a sum of cubes.
64x^3 + 125
So far i have the entire cube written out as its shown below
(4x + 5) ( 4x^2 + ?x + 25)
So... ill like to know what do i do to get the middle part of the cube and to know if what i even did is correct...
Sum of cubes ....true (the cubes are 4x and 5)
Her ya go