Respuesta :

answer: 54x^2 - 330x - 336

step by step explanation:

6 (x-7) x (9x+8)

distribute 6 through the parentheses

(6x - 42) x (9x+8)

multiply the parentheses

54x^2 + 48x - 378x -336

collect like terms

54x^2 - 330x - 336

and thats your answer
hope this helps you :)