Question

15(x-2y )2 -8 (x-2y) - 16

Answer 1

15x-30y 2-8x-16y - 16
15x-8x-30y-16y 2-16
7x-46y -14

Answer 2

15(x-2y)2-8(x-2y)-16
= (15x - 30y )+( -6x+13y) -16
= (15x-30y) + ( 96x- 199y)
= 111x -229y ( 1st equation)