Solve the equation 5x2 - 4x - 1 = 0

A.

-1, 1/5

B.

-1, -1/5

C.

1, 1/5

D.

1, -1/5

E.

-1, 5

View answer & explanation

Correct answer is D

5x2 - 4x - 1 = 0
5x2 5x + x -1 = 0
5x(x - 1) + (x - 1) = 0
(5x + 1)(x -1) = 0
x = -1/5 or 1 = 0

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