Answer Happy

Pls help ASAP. Pls do Q4
3. Which of the following polynomial function has degree = 3 and leading coefficient -6? a) f(x)=3-6x²+2x2 - 1 b) f(x)=3 x– xº -5x²-1 c) f(x)=-6x+x2+2x²-1 d) f(x)=x+x\+2x² - 6 4. Which polynomial function would have the ending behaviour : as x=>«y->-- and as x1-0,7--00? a) f(x)=7 x® – 8x4 – 2x+x²+3x – 2 b) f(x)=- 7 x® – 8x4 - 2x*+x²+3x-2 c) f(x)=- 7x® – 8x4 – 2x*+x²+3x-2 d) f(x)=7xº –8 x* – 2x® + x²+3x-2