Mnx+mny-mnz nx+ny-nc ad+ac mnx+mny+mnz ab-ac

To simplify these expressions, let's collect like terms:

1. mnx + mny - mnz:

   • There are no like terms to simplify in this expression, so it remains the same.

2. nx + ny - nc:

   • There are no like terms to simplify in this expression, so it remains the same.

3. ad + ac:

   • This expression can be simplified by factoring out 'a': a(d+c).

4. mnx + mny + mnz:

   • There are no like terms to simplify in this expression, so it remains the same.

5. ab - ac:

   • This expression can be simplified by factoring out 'a': a(b-c).

I hope this helps in your exam preparation! Let me know if there's anything else I can assist you with.