Monday, 14 November 2016

EXPONENTIALS 3


If 52w (400w) = 10 ; Find w.

Solution

52w (400w) = 10

(52)w (400w) = 10

(25)w (400w) = 10

(25 x 400)w = 10

(10000)w = 10

(104)w = 10

104w = 101   (Bases are alike, so they cancel out)

4w = 1

4w = 1
4       4

w = 1/4

TRY THIS…………………………….


NECTA 2004 QN. 4b


If 32t (4t) = 6 ; Find t.

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