Question

9 to the power x+2 = 240 + 9 to the power x find x

Answer 1

Answer:

Step-by-step explanation:

9  x+2  =240+9 x

⇒9  x+2 −9  x  =240

⇒9  x  (81−1)=240

⇒9  x  =3

⇒3  2x  =3  1

⇒2x=1

⇒x=  

=>2 1  =0.5

I hope it is helpful!!

Answer 2

Answer:

$9^{x+2} = 240+9^{x}$

$9^{x+2} -9^{x}=240$

80 .$9^{x}$ = 240

$9^{x}$ = 3

$3^{2x}$ = 3

2x=1

x=1/2

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