Question

(a+6)(8a^2-a+1)

Answer 1

What is the question asking for @SAMBEN ?

Answer 2

$$\Huge (a+6)(8a^2-a+1)$$

Answer 3

$$\Huge a(b+c+d)=ab+ac+ad$$

Answer 4

$$\Huge\text{Let a = a+6}$$ $$\Huge (a+6)(8a^2-a+1)$$ $$\Huge =(a+6)(8a^2)-(a+6)a+a+6$$

Answer 5

$$\Huge (b+c)a=ba+ca$$