Polynomials, SMB-004 Let `p(x)=x^{3}-2 a x^{2}+x-1`. When `p(x)` is divided by `(x+2)`, the remainder is 5. Find the value of `a`. (2 marks) --- 4 WORK AREA LINES (style=lined) --- Show Answers Only `-2` Show Worked Solution `text{Since}\ \ p(x) -: (x+2)\ \ text{has a remainder of 5:}` `P(-2)` `=5` `5` `=(-2)^3-2a(-2)^2-2-1` `5` `=-8-8a-2-1` `8a` `=-16` `:.a` `=-2`