Question 1106143
{{{t(x)=5-x^3+x}}};
What is {{{t(-1)}}} ?


Use your function in decreasing powers of x as {{{t(x)=-x^3+x+5}}}.  For the value of t when x is  -1, use Rational Roots Theorem or Remainder Theorem; or simply substitute for x and evaluate t.


Just making the substitution and evaluating is easiest for this exercise.


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