## Algebra and Trigonometry 10th Edition

Expression : $9x^{3} - 25 x^{2}$ Set the expression to zero : $9x^{3} - 25 x^{2}=0$ $(9x - 25 )x^{2}=0$ Hence either 9x-25 = 0 in which case x=25/9 or $x^{2}=0$ in which case x=0