Answer:
3x+5-x2
Step-by-step explanation:
(3x2+2x+4)-(x2+2x+1)
3x+2+2x+4-x2-2x-1
3x+2x-2x+2+4-1-x2
0
the product is three numbers multiplied together. any number times 0 is 0, so one of the numbers has to be 0
