a) 94x^2+15x-25
b)34^2+15x-25
c)27x+3
d)34x^2-15x-25

Answer:
d) 34x^2 - 15x -25
( (8x + 5) * (8x - 5) ) - 5x(6x +3 )
= 64x^2 - 25 - 30x^2 - 15x
= 34x^2 - 15x - 25