Question

I WILL FAN AND MEDAL!!!!!!!!!!!!
Which expression is equivalent to 3^4 ⋅ 3–^9?

Answer 1

\(\bf \large {
a^n\cdot a^m\implies a^{n+m}\qquad thus
\\ \quad \\
3^4\cdot 3^{-9}\implies 3^{4-9}
}\)