# Thread: how do i ?

1. ## how do i ?

how do i do this problem

Factor 75x5 -30x3 +45x

2. Originally Posted by jim1174
how do i do this problem

Factor 75x5 -30x3 +45x
Notice you can first factor $15x$ out of paranthesis to get,
$15x(5x^4-2x^2+3)$