<span>The GCF is the greatest common factor of 2 or more numbers or polynomials. </span><span>Start with the factors: x, x + 1, x - 2 Now multiply them together. </span>x(x+1)(x−2)<span>=(x2+x)(x−2)</span> <span>=x3−2x2+x2−2x</span> <span>=x3−x2−2x </span>Our polynomial is: <span>x3−x2−2x</span>