(x-2)2 = 9
(x - 2) { = 9}^{2}

Respuestas

Respuesta dada por: clevercadillo75
0

Respuesta:

x

=

1

or  

x

=

5

Explanation:

(

x

+

2

)

2

=

9

can be written as  

(

x

+

2

)

2

9

=

0

or

(

x

+

2

)

2

3

2

=

0

Now using the identity  

a

2

b

2

=

(

a

b

)

(

a

+

b

)

, we have

(

x

+

2

3

)

(

x

+

2

+

3

)

=

0

or

(

x

1

)

(

x

+

5

)

=

0

Hence either  

(

x

1

)

=

0

i.e.

x

=

1

or  

(

x

+

5

)

=

0

i.e.  

x

=

5

Explicación paso a paso:

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