Question

Solve for x
2^2x+3 -9*2^x+1=0​

Answer 1

Answer:Explanation:

First, get  

0

on one side.

(

x

2

−

2

x

−

1

)

 

−

(

x

+

3

)

=

x

+

3

 

−

(

x

+

3

)

x

2

−

3

x

−

4

=

0

Next, factor this equation.

(

x

−

4

)

(

x

+

1

)

=

0

Therefore,

(

x

−

4

)

=

0

x

=

4

or

(

x

+

1

)

=

0

,

x

=

−

1

You can verify this using FOIL:

=

x

2

+

x

−

4

x

−

4

=

(

x

2

−

3

x

−

4

)

Step-by-step explanation: not right