Question

splitting of y2-2y+8=0​

Answer 1

Step-by-step explanation:

y2-2y+8=0

y2-4y+2y+8=0

y(y-4)+2(y+4)=0

(y+2) (y-4)=0

y=-2 or y=4

Answer 2

Step-by-step explanation:

y2-2y-8=0

y2-4y+2y-8=0

y(y-4)+2(y-4)=0

(y-4)(y+2)=0

therefore

y+2=0

y=-2

and

y-4=0

y=4