(3x-1)(10x+4)=0
so the solutions are -4/10 and 1/3
30x^2 +2x -4 = 0
15x^2 + x - 2 = 0
15x^2 +6x -5x -2 = 0
3x ( 5x +2) -1( 5x +2) = 0
( 3x-1) ( 5x +2) = 0
x = 1/3 ANSWER ( and - 2/5 is the other )
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(3x-1)(10x+4)=0
so the solutions are -4/10 and 1/3
30x^2 +2x -4 = 0
15x^2 + x - 2 = 0
15x^2 +6x -5x -2 = 0
3x ( 5x +2) -1( 5x +2) = 0
( 3x-1) ( 5x +2) = 0
x = 1/3 ANSWER ( and - 2/5 is the other )