Question

full solutions:-
1) solve for x. (-2)^x*(-2)^2x=(-2)^9​

Answer 1

Answer:

$x=3$

Step-by-step explanation:

We have,

$(-2)^x·(-2)^{2x} = (-2)^9$

$(-2)^{2x+x} = (-2)^9$

$2x+x=9$

$3x=9$

$x=\dfrac{9}{3}$

$x=3$