Question

Which value is NOT a solution of 8x3 – 1 = 0?

Answer 1

what are the choices?

Answer 2

A)1-i√3/4
B)2
C)1+i√3/4
D)1/2

Answer 3

solve for x

Answer 4

You sure that the question is right?

Answer 5

yes thats how the question was written

Answer 6

I only get D as a solution ._.

Answer 7

ya same

Answer 8

thats what i got but i wasn't sure thanks for the help everyone

Answer 9

Let's test choice D

8x^3 - 1 = 0

8(1/2)^3 - 1 = 0 ... replace x with 1/2

8*(1/8) - 1 = 0

1 - 1 = 0

0 = 0 ... this is true so x = 1/2 is indeed a true solution to 8x^3 - 1 = 0

Answer 10

They are asking for non-solutions.