Respuesta :

mallikabatra

Answer:

-1.5[tex]i^2[/tex]-32[tex]j^2[/tex]-16ij

Step-by-step explanation:

When you substitute it you will get (3i+8j)(-0.5i-4j)

Then you will use FOIL

From this, you get -1.5[tex]i^2[/tex]-32[tex]j^2[/tex]-16ij