Wednesday, 9 August 2017

EXPONENTIALS 3


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

Solution

52w (40w) = 10w+40

(52)w (40w) = 10w+40

(25)w (40w) = 10w+40

(25 x 40)w = 10w+40

(1000)w = 10w+40

(103)w = 10w+40

103w = 10w+40  (Bases are alike, so they cancel out)

3w = w+40

3w - w = 40

2w = 40

2w = 4020
2       2

w = 20

TRY THIS…………………………….


If 32t (4t) = 6t+10 ; Find t.



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