Question

Solve 8x 2 - 2x - 1 = 0 {-1/4, 1/2} {-1/2, 1/4} {1/2}

Answer 1

8x^2 - 2x - 1 = 0
(2x - 1)(4x + 1) = 0
2x - 1 = 0; x = 1/2
4x + 1 = 0;x = -1/4

answer
{-1/4, 1/2}