Week 11 Blog Post

we learned many things so far, but especially  I had to review about Exponents

 

Basic Formulas

(1) am×an=am+n         a2×a3=a2+3=a5
(2) am÷an=am−n        a5÷a2=a5−2=a3
(3) (am)n=amn         (a3)2=a3×2=a6
(4) (ab)n=anbn         (ab)3=a3b3

(5) ( ab)n = anbn       ( ab)3 = a3b3

a0 = 1

 

①138 = 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 = 6561

⓶33)2
= (3 × 3 × 3)2
= (3 × 3 × 3) × (3 × 3 × 3)
= 3 × 3 × 3 × 3 × 3 × 3
= 36
= 33 × 2

an =1/an

③a2÷a5=a2−5=a−3

a2÷a5= a2/a5 = a×a/a×a×a×a×a = 1a/3

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