A simple challenge to you all .3.

 

   what is -19 to the fifth power * -19 to the 11th power?     

 

   To multiply exponential expressions with the same base, keep the base and add the exponents.     

 

   (–19)⁵ • (–19)¹¹  =  (–19)^{(5 +11)}  =  –19¹⁶     

   _.