## College Algebra (11th Edition)

(5x - 3)(25$x^{2}$ + 15x + 9)
125$x^{3}$ - 27 is a difference of cubes, so we write it as a difference of cubes and factor: $(5x)^{3}$ - $3^{2}$ = (5x - 3)($(5x)^{2}$ + 5x(3) + $3^{2}$) = (5x - 3)(25$x^{2}$ + 15x + 9)