math

factor this polynomial function completely

f(x)=12x^4+10x^3-214x^2+198x+90

I found all the possible rational zeros but just cant seem to factor it all

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asked by Paul
  1. If you found the rational zeros then it is easy to find the factors.

    e.g. suppose one of the values is x = -2/3
    then the corresponding facor is (3x+2)

    so just use your zeros and set up the factors from those following the pattern from above.

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    posted by Reiny

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