Question

How do you simplify `(-20a^-2b^-7)/(5a^-5b^3)`?

Answer 1

`(-20 a^(-2)b^(-7))/(5a^(-5)b^3)`

`color(white)("XXXX")` `= ((-20)/(5)) * ((a^(-2))/(a^(-5))) * ((b^(-7))/(b^3))`

`color(white)("XXXX")` `= (-4) * (a^3) * (1/b^(10))`

`color(white)("XXXX")` `=-4 (a^3)/(b^10)`