Thursday 29 June 2017

EXPONENTIALS 1


If 52w (40w) = 100,000,000 ; Find w.

Solution

52w (40w) = 100,000,000

(52)w (40w) = 108

(25)w (40w) = 108

(25 x 40)w = 108

(1000)w = 108

(103)w = 108

103w = 108   (Bases are alike, so they cancel out)

3w = 8

w = 3/8

TRY THIS…………………………….


If 42c (4c) = 512 ; Find c.

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