solution of 2x²+7x+9=0 in quadratic equation
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Answer:
( - 7 ± i√23 ) ÷ 4
Step-by-step explanation:
2x² + 7x + 9 = 0
D = 49 - 72 = - 23
= [ - 7 ± √(- 23)] / 4 = ( - 7 ± i√23 ) ÷ 4 ( i = √(- 1))
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