Question

Find all the rational roots of 2x^3-x^2+8x-4=0

Answer 1

HI!!

Answer 2

it really says "all rational roots" right not "all POSSIBLE rational root"?

Answer 3

yeah it sais "all" :)

Answer 4

because the only rational root is \(\frac{1}{2}\) as it factors as \[(2x-1)(x^2+4)\]

Answer 5

if they left out the word "possible" then they want the actual one, namely \(\frac{1}{2}\)

Answer 6

wait so is it just 1/2? im very bad at algebra haha

Answer 7

yeah it is just \(\frac{1}{2}\)

Answer 8

oh okay then
thank you!

Answer 9

unless they said find all "possible' ones
if they did not use the word "possible' then only one half

Answer 10

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