Answer:
(- 5 ± √33) / 2
Explanation:
x² + 5x - 2
Here,
a = 1
b = 5
c = - 2
Determinant (D) = b² - 4ac
D = 5² - 4 × 1 × (- 2)
= 5² - (4) (- 2)
= 5² - (- 8)
= 25 + 8
D = 33
x = (- b ± √D) / 2a
= (- 5 ± √33) / 2( 1 )
x = (- 5 ± √33) / 2
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