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Workbook

2 20  2 14
d) 
2 18  2 12

Equality of Powers:

a) If a   0,1 1 ,  a , m a , then m  .
n
n

Example 12: What is the value of x for each of the following equations given below?

a) 2 x  5  8

x
b) 32  16

c) 27 x  2    3,0 6

b) If n  a , Z 2 n 1  b 2 n 1 , then a  . If n  a , Z 2 n  b 2 n , then a  b .
b

Example 13: If 3( x  ) 7 2004  x (  11 ) 2004 , then find the sum of possible values ofx ?

0
i ) a  , 0 a  1
n
c) )ii 1  1
iii ( )  ) 1 2n  ( 1 n Z )

50 091math-wb-w6-(equations&inequalities-1)