Question

factorise 12 y square + 8 Y - 20

Answer 1

12y2+8y-20

12y2-12y+20y-20

12y(y-1)+20(y-1)

(12y+20),(y-1)

12y+20=0

12y=-20

y=-20/12

y=-5/3

or

y-1=0

y=1

Answer 2

Hey

Here is your answer,

12y^2 + 8y - 20 = 0
12y^2 - 12y + 20y - 20 = 0
12y (y-1) + 20 (y-1) = 0
(12y + 20) (y-1) = 0
12y + 20 = 0
Y = -20/12 = -5/3
Y-1 = 0
Y=1

Hope it helps you!