Question

obtain all the zeroes of the polynomial f(x) = 2x^4 + x^3 14x ^2 -19 x - 6 if two of its zeroes are -2 and - 1 ​

Answer 1

f(x)=2x*4+x*3*14x*2-19-6

f(2)=2*2*4+2*3*14*2*2-19-6

=327

f(-1)=2*-1*4+(-1)*3*14*-1*2-19-6

=111

Hope it will help you

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