Question

X square - 3x - 2 = 0 solve the quadratic equations formula​

Answer 1

Answer:

x²-3x-2=0

$by \: quadratic \: formula$

Discriminant =

$b {}^{2} - 4ac \\ {3}^{2} - 4(1)( - 2) \\ 9 + 8 \\ = 17$

Now,

x=

$- b + \frac{ + }{ } \sqrt{d } \: upon \: 2ac \: \\ 3 \ \frac{ + }{} \sqrt{17} \: upon \: - 6$

So,1) x= 3+√17.

-6

2) x= 3-√17

-6

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