Answer:

(12x+8)(12x-10)

(12x)² + [8+(-10)] 12x + 8×10

24x² +(-2)×12x + 80

24x² -24x +80

[Identity= x² + (a+b)x + ab]

Verified answer

Answer: 144x^2 - 24x - 80

Step-by-step explanation:  identity: (x+a)(x+b)=x^2+ a+b(x) + ab

here, x=12x

         a=8

         b= (-10)

(12x)^2 + [8+(-10)] * 12x + 8 * (-10)

=144x^2 + (-24x) + (-80)

= 144x^2 - 24x - 80