How do you use synthetic substitution to find f(1+i) for f(x)=-x^3+2x^2+3x-5f(x)=−x3+2x2+3x−5?

1 Answer
Alan P.
Dec 20, 2015

f(1+i) = 5if(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)) :}

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