Question

simplify
answer fastly

Answer 1

we know that aᵇ×aⁿ = a⁽ᵇ⁺ⁿ⁾

(-4)⁵×(-4)⁻¹⁰ = (-4)⁽⁵⁺⁽⁻¹⁰⁾⁾

                  = (-4)⁽⁵⁻¹⁰⁾  

                  = (-4)⁻⁵

                  = (-1)/(4^⁵)

                  = (-1)/1024