Respuesta :

Since 3x and 4x both have X's, you can multiply them.

So the answer would be 12x-18
Number 2: 

Distribute. 

3x(4x-6)= 12x^2- 18x (when multiplying 2 variables, you square the number) 

That would be your answer! 

I hope this helps you!

Brainliest answer is always appreciated!