Question 4 plsss and thank youu

Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. use the drop-down menus to identify the steps lorne used to find the difference.

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

Issof claims that the scale factor is 1/2. which statement about his claim is correct