What is x minus 1 cubed?
xcubed-1 Answer::(X-1)(Xsquared+X+1) when you factor xcubed
minus a number its the same thing as x cubed minus y cubed and x
cubed minus y cubed factors to:: (x-y)(xsquared+xy+y squared) the
first factor, (x-y), is the cubed root of the first and the cubed
root of the second, so in the answer i have (x-1), which is x cubed
minus one cubed :) the second factor, (xsquared+xy+ysquared), you
take the first number squared, Xsquared, then the first and second
one multiplied together, XY, and then the second number squared,
Ysquared, so in the answer i have (xsquared+x+1), which is x
squared, then x times 1 which is just x, and positive 1, which is
negative 1 squared :) x^3 - 1