Thursday, 10 November 2016

EXPONENTIALS 2


If 52w (40w) = 10 ; Find w.

Solution

52w (40w) = 10

(52)w (40w) = 10

(25)w (40w) = 10

(25 x 40)w = 10

(1000)w = 10

(103)w = 10

103w = 101   (Bases are alike, so they cancel out)

3w = 1

3w = 1
3       3

w = 1/3

TRY THIS…………………………….


NECTA 2004 QN. 4b


If 32t (4t) = 6 ; Find t.   


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