Question

Solve by factoring: 3x2 + 2x - 1 = 0
A. {-1, 2/3}
B. {1, -2/3}
C. {-1, 1/3}
D. {1, -1/3}

Answer 1

c

Answer 2

3x2 + 2x - 1 = 0
(3x-1)(x+1) =0

3x-1=0 or x+1=0
x=1/3 x=-1

{-1, 1/3}