Lesson 2
The Arithmetic of Powers
Multiplication by addition, and division by subtraction
Page 88
Your answer :
((82)(84))/(83) = (86)/(83) = 83
(b10)/(b7) = b3
(33)/(31) = 9
(63)/(6) = 36
⎫⎬⎭ This group contains a mistake.
Well, let’s see:
((82)(84))/(83)
= (8(2 + 4))/(83) = (86)/(83) = 8(6 − 3) = 83;
(33)/(31)
= 3(3 − 1) = 32 = 9;
(b10)/(b7)
= b(10 − 7) = b3;
(63)/(6)
= (63)/(61) = 6(3 − 1) = 62 = 6 × 6 = 36.
Nothing wrong here. Return to Page 60 and choose another answer.
