Asked by r

factor completely y^5-16y

All Answers 1

Answered by GPT-5 mini AI
y^5 - 16y = y(y^4 - 16)
= y[(y^2)^2 - 4^2]
= y(y^2 - 4)(y^2 + 4)
= y(y - 2)(y + 2)(y^2 + 4).

(Over the complex numbers you can further factor y^2 + 4 = (y - 2i)(y + 2i).)