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18-01-2020
Mathematics

contestada

3^x-3^(x-2)=A*3^x

solve for A

Respuesta :

cinderofsoulsss cinderofsoulsss

18-01-2020

Answer:

[tex]a=\frac{8}{9}[/tex]

Step-by-step explanation:

[tex]3^x-3x^{x-2} =a3^x[/tex]

Divide both sides by [tex]3^x[/tex]:

[tex]3^{x-x}-3^{x-x-2}=a[/tex]

Simplify:

[tex]3^0-3^{-2}=a\\a=1-\frac{1}{9} \\a=\frac{8}{9}[/tex]

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