Question 2(i) Simplify and express the result in power notation with positive exponent:
(−4)5÷(−4)8
(−4)5÷(−4)8=(−4)5−8 [∵am÷an=am−n]=(−4)−3=1(−4)3 [∵a−m=1am]
Simplify and express the result in power notation with positive exponent:
(−3)4×(53)4
Question 2(ii) Simplify and express the result in power notation with positive exponent:
(123)2
Question 2(v) Simplify and express the result in power notation with positive exponent:
2−3×(−7)−3