Question

1. for what value of z,
$3 {}^{z + 4} - 27 {}^{z } = 0$
?​

Answer 1

Answer:

z = 2

Step-by-step explanation:

$3^{z+4} - 27^{z} = 0$

$3^{z+4} = 3^{3z}$ ⇒ 3z = z + 4 ⇒ z = 2