Question

Solve 2x^3 -x^2 -18x +9=0 if sum of two of its roots vanish I need step by step solution Please help

Answer 1

Answer:

Sum of roots of given equation =

$\frac{ - coefficient \: o f \: {x}^{2} }{coefficient \: of \: {x}^{3} }$

so sum of roots =1/2