Answer:
Explanation:
2x² + 6x - 5 = 0
D = 36 + 40 = 76 = (2√19)²
= ( - 6 - 2√19) / 4 = ( - 3 - √19) / 2
= ( - 3 + √19) / 2
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= ( - 6 - 2√19) / 4 = ( - 3 - √19) / 2 
= ( - 3 + √19) / 2