Factoring: 9x3-18x2-x+2. Thoughtfully split the expression at hand into groups, each group having two terms : Factoring: 9x2-1. Check : 9 is the square of 3. A product of several terms equals zero. Solve : 3x+1 = 0. Solve : 3x-1 = 0. Solve : x-2 = 0.
