1).WHICH BINOMAIL IS A FACTOR OF F(X)=X^4+12X^3+41X2+18X-72?
2).WHICH IS THE FACTORED FORM OF X^3-8^2+9x+18 =0 ?
3)according to the rational root therom,which is not a possiblerational root of 5x^3+3x^2-2x+15=0
4)how many rational roots does x^3+2x^2+8x+16=0 have?
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