# Is it possible to factor y=x^4+3x^3-25x ? If so, what are the factors?

Sure, all the terms have a common factor of $x$:
$y = {x}^{4} + 3 {x}^{3} - 25 x = x \left({x}^{3} + 3 {x}^{2} - 25\right)$