Question

$2 {x}^{2} + x - 3$
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Answer 1

Ответ:

1; -3/2

Объяснение:

2х²+х-3 = 0

D = b²-4ac

D = 1²-4*2*(-3) = 1+24 = 25

√25 = 5

x1 = (-b+√D)/2a = (-1+5)/2*2 = 4/4 = 1

x2 = (-b-√D)/2a = (-1-5)/4 = -6/4 = -3/2