Question

$9 ^{x + 2} = 240 + 9 {}^{2}$
find the value of x​

Answer 1

Answer:

Answer - 0.5

Step-by-step explanation:

Given: 9x+2=240+9x

⇒9x+2−9x=240

⇒9x(81−1)=240

⇒9x=3

⇒32x=31

⇒2x=1

⇒x=21=0.5