Question

How do you use synthetic substitution to find f(1+i) for `f(x)=-x^3+2x^2+3x-5`?

Answer 1

`f(1+i) = 5i`

Explanation:

#{: (,"|",-1,color(white)("XX")2,color(white)("X")3,-5), (,"|",,-1-i,color(white)("X")2,5+5i), ("------------",,"------","---------","------","------"), (xx(1+i),"|",-1,1-i,color(white)("X")5,color(white)("X")color(red)(5i)) :}#