Simplify and express the result in power notation with positive exponent.
(i) 
(ii) 
(iii) 
(iv) 
(v) 
(i) (−4)5 ÷ (−4)8 = (−4)5 − 8 (am ÷ an = am − n)
= (− 4)−3
(ii) 
(iii) 
(iv) (3− 7 ÷ 3−10) × 3−5 = (3−7 − (−10)) × 3−5 (am ÷ an = am − n)
= 33 × 3−5
= 33 + (− 5) (am × an = am + n)
= 3−2
(v) 2−3
× (−7)−3 =
