Question

solve x2-2X+3=0 (solve by using quadratic formula ​

Answer 1

Answer:

We have

x

2

+

2

x

−

3

=

0

. For any

a

x

2

+

b

x

+

c

=

0

,

x

is given by:

x

=

−

b

±

√

b

2

−

4

a

c

2

a

Here,

a

=

1

,

b

=

2

,

c

=

−

3

. Inputting:

x

=

−

(

2

)

±

√

2

2

−

4

(

1

)

(

−

3

)

2

⋅

1

x

=

−

2

±

√

4

+

12

2

x

=

−

2

±

√

16

2

x

=

−

2

±

4

2

x

=

2

2

,

−

6

2

x

=

1

,

−

3

Answer 2

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No real roots