Question

(-2)^x+1 x(-2)^3=(-2)^12 find x

Answer 1

the value of x is 8 here

..

hope this helps

Answer 2

We have,

$( - 2) ^{x + 1} \times ( - 2) ^{3} = { (- 2)}^{12}$

Here base are same ,

So, Powers will be added.

$x + 1 + 3 = 12$

$x + 4 = 12$

$x = 12 - 4$

$x = 8$