Question

Which expression is equivalent to 3^2 ⋅ 3−5?

fraction 1 over 3 to the power 3

fraction 1 over 3 to the power 7

fraction 1 over 3 to the power negative 3

fraction 1 over 3 to the power negative 7

Answer 1

@haseeb96

Answer 2

@Nnesha

Answer 3

when we multiply same bases we should `add` exponents \[\huge\rm x^m \times x^n=x^{m+n}\]

Answer 4

and then change negative to positive exponent \[\huge\rm x^{-m}=\frac{ 1 }{ x^m }\]