Question

d) 2x² - x - 2






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Answer 1

Answer:

day to answer

2x-7777777°======°ANSWRR

Answer 2

Answer:

$2 {x}^{2} - x - 2 = 0$

$a = 2 \: \: \: b = - 1 \: \: \: c = - 2$

${b}^{2} - 4ac = { - 1}^{2} - 4 \times 2 \times - 2 = 15$

$x = \frac{ - b + \sqrt{15} }{2a} = \frac{1 + \sqrt{15} }{4}$

$x = \frac{1 - \sqrt{15} }{4}$

that's is your answer