Question

3^(2x+4) =240 + 3^(2x) FIND X AND DETERMINE (8x)^x​

Answer 1

Answer:

It may help you.

9

x+2

=240+9

x

9

x

×9

2

−9

x

=240

9

x

(81−1)=240

9

x

=3

3

2x

=3

By comparing powers

∴x=

2

1

Now (8x)

x

=(8×

2

1

)

2

1

=2

Answer 2

Answer:

PLEASE MARK ME AS BRAINLIEST

Step-by-step explanation:

Given,

9x+2=240+9x

9x×92−9x=240

9x(81−1)=240

9x=3

32x=3

By comparing powers

∴x=21

Now (8x)x

=(8×21)21

=2