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A polynomial with integer coefficients is of the form

\[2x^4 + a_3 x^3 + a_2 x^2 + a_1 x + 18 = 0.\]

Find the number of different possible rational roots of this polynomial.

 Dec 10, 2020
 #1
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Factors  of 18 =  1,2,3,6,9,18

Factors of 2   = 1, 2

 

All possible rational roots  =

 

 ± [ 1,2,3,4,6,9,18 , 3/2 , 9/2  ]

 

cool cool cool

 Dec 11, 2020

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