SOLUTION: I need help with this problem:
Graph the function below, then factor completely.
f(x) = 2x4 + 9x3 + x2 + - 21x + 9
Algebra ->
Rational-functions
-> SOLUTION: I need help with this problem:
Graph the function below, then factor completely.
f(x) = 2x4 + 9x3 + x2 + - 21x + 9
Log On
You can put this solution on YOUR website! Have you tried by grouping? In any case, you should be able to find -3 and +1 to be roots of f. Try synthetic division to reduce f to its factors.
(