Question

How to solve cube root for x -729 polynomial using the formula for the difference of two cubes?

Answer 1

Assuming x is really x^3; 

∛729 = 9 

The differences of cube rule states: x³-y³= (x-y)(x²+xy+y²) 

(x)³-(9)³=(x-9)(x²+9x+9²)
=(x-9)(x²+9x+81) 

Hope I helped :)