Question

please answer these questions if you know few you can answer few but do not send irrelevant answers , ok​

Answer 1

Answer:

1)x²+5x+6

2)4b²-25

3)9m²-4

4)bx⁴-10x²+10bx²-100

5)2a³b³c³d-2abc³d

6)2x²y² -2x-x³y³+x²y