Answer:
She applied the exponent -2 to 4(-2) instead of applying the exponent to just -2
Step-by-step explanation:
we have the expression
[tex]\frac{4m^{-3}n^{-2}}{m^{-1} n}[/tex]
Simplify
[tex]\frac{4m^{-3}n^{-2}}{m^{-1} n}=4m^{(-3+1)}n^{(-2-1)}= 4m^{(-2)}n^{(-3)}[/tex]
Substitute the values of m and n in the expression
For[tex]m=-2, n=4[/tex]
[tex]4(-2)^{(-2)}(4)^{(-3)}=4(\frac{1}{4})* (\frac{1}{64})=\frac{1}{64}[/tex]
She applied the exponent -2 to 4(-2) instead of applying the exponent to just -2
