Please answer this question!! 30 points and brainliest!

Answer:
2x^2 -x -3
Step-by-step explanation:
7x^2 -3x+1 - (5x^2 -2x+4)
Distribute the minus sign
7x^2 -3x+1 - 5x^2 +2x+-4
I like to line them up vertically
7x^2 -3x+1
- 5x^2 +2x+-4
-------------------------
2x^2 -x -3