Question

Give Medals . (:

What are the possible rational zeros of f(x) = 2x3 - 4x2 - 7x + 10 ? (3 points)
Answer
± , ± 1, ± 2, ± , ± 5, ± 10
± 1, ± 2, ± 5, ± 10
, 1, 2, , 5, 10
1, 2, 5, 10

Answer 1

+- , --, -+ { YOur functions signs }
it has two or negative root

Answer 2

ummm I don't think your options contain the correct answers... just used to remainder theorem

f(-1) = 11 f(1) = 1, f( 2) = -4 etc... might pay to check the question