3x² + 2x - 4 = 3( - 1/3 + 1/6√52 )( - 1/3 - 1/6√52 ) = ( - 1 + 1/2√52 )*( - 1/3 -
- 1/6 √ 52 )
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D = 2² - 4*3*( - 4 ) = 4 + 48 = 52 = ( √ 52 )²
x1 = ( - 2 + √ 52 ) : ( 2 * 3 ) = ( - 2 + √ 52 ) : 6 = - 1/3 + 1/6√52
x2 = ( - 2 - √ 52 ) : 6 = - 1/3 - 1/6√ 52