Question

1
Factorise the polynomial.
(y2 + Sy) (y? + Sy - 2) - 24.​

Answer 1

Answer:

let Y2+5y=x

Step-by-step explanation:

x(x-2)-24

x2-2x-24

x2-6x+4x-24

x(x-6)+4(x-6)

(x-6)(x+4)

now put value of x

(y2+5y-6)(y2+5y+4)

(y2+6y-y-6)(y2+4y+y+4)

{y(y+6)-1(y+6)}[y(y+4)+1(y+4)]

(y-1)(y+6)(y+1)(y+4)