Question

x²-5x+6=0-решите через дискриминант

Answer 1

D=25-24=1
X1=$\frac{5-1}{2} =2$
X2=$\frac{5+1}{2} =3$

Answer 2

$D$ = b$b^{2} - 4ac = 25 - 24 = 1$
$\sqrt{D} = \sqrt{1} = 1$
$x$ $= \frac{-b + \sqrt{D} }{2a} = \frac{5 + 1}{2} = \frac{6}{2} = 3$
$x = \frac{-b - \sqrt{D} }{2a} = \frac{5 - 1}{2} = \frac{4}{2} = 2$
Ответ: 2, 3