Question 70967
y^4+3y³-5y²-15
 factor each term.
= y*y*y*y
= 3*y*y*y
= -1*5*y*y
= -1*3*5*y
Look for the G.C.F= y
Multiply the rest of the terms, with out considering the G.C.F
= y(y³+3y²-5y-15)