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what is the roots of
[tex]x {}^{2} - 8 = 0[/tex]


Sagot :

Answer:

x

2

+

2

x

8

=

0

The equation is of the form

a

x

2

+

b

x

+

c

=

0

where:

a

=

1

,

b

=

2

,

c

=

8

The Discriminant is given by:

Δ

=

b

2

4

a

c

=

(

2

)

2

(

4

1

(

8

)

)

=

4

+

32

=

36

The solutions are found using the formula

x

=

b

±

Δ

2

a

x

=

(

2

)

±

36

)

2

1

=

(

2

±

6

)

2

x

=

2

+

6

2

=

4

2

=

2

,

x

=

2

Step-by-step explanation:

pa follow:))