Question

Show by long division that (x-3) is a factor of 2x^4-3x^3-26x^2-5x+6

Answer 1

(x-3)=0
x=3
now,
putting x=3, we get
2*3^4-3*3^3-26*3^2-5*3+6
=2*3^4-3^4-26*9-15+6
=3^4-234-15+6
=81-234-15+6
=-162

it's not an factor of (x-3)

please mark my answer as brainliest.