Respuesta :

Nevens

(12)(7)(6x)=504x

(12 * 7 * 6)(x)=504x

(7)(12)(6) + x=504+x

12(7 + 6x)=84+72x

12 + 7 + 6x=19+x

wee see that

A*B=(A)(B)
I believe the expression equals to 12(7+6x). You multiply 12 by everything but you can't multiply the x to everything so Itd be 84+72x. answer being C.