Algebra and Trigonometry 10th Edition

$(2x-1)(x^{2}-3)$
Expression : $2x^{3}-x^{2}-6x+3 = (2x^{3}-x^{2})-(6x-3)$ (group the terms) = $x^{2}(2x-1)-3(2x-1) = (2x-1)(x^{2}-3)$ (factor out the common factor)