Respuesta :
I'm assuming the "x+2" is the exponent. If so, then
[tex]3^{x+2}*3^x = 3^{x+1}[/tex]
is false.
Recall that when we multiply exponential expressions of the same base, we add the exponents.
So it should be [tex]3^{x+2}*3^x = 3^{(x+2)+(x)} = 3^{2x+2}[/tex]
If the [tex]3^{x+1}[/tex] was [tex]3^{2x+2}[/tex], then the original equation would be correct.