Question

True or false? 3ˣ + 2·3ˣ = 3ˣ⁺¹

Answer 1

True

Explanation:

Answer 2

I'm assuming the "x+2" is the exponent. If so, then

`3^(x+2)*3^x = 3^(x+1)`

is false.

Recall that when we multiply exponential expressions of the same base, we add the exponents.

So it should be
`3^(x+2)*3^x = 3^((x+2)+(x)) = 3^(2x+2)`

If the
`3^(x+1)` was
`3^(2x+2)`, then the original equation would be correct.