Question

(y²+5y)(y²+5y-2)-24​

Answer 1

y'4 + 5y'3 - 2y'2 +5y'3 + 25y'2 - 10y - 24

y'4 + 10y'3 + 23y'2 - 10y - 24

y'4 + 10y(y'2 - 1) + 23(y'2 - 1)

y'4 + (10y + 23) (y'2 - 1)

Hope it will help you..