Question

find the value of x, if​

Answer 1

Answer:

5 to the 8 *5 to the power4=5 to the power 4x

Step-by-step explanation:

5 to the power 12 =5 to the power 4x

on comparing powers,

12=4x

since, x=3

Answer 2

Answer:

x = 3

Step-by-step explanation:

[ (1/5) ^ -8 ] × [ (1/5) ^-4 ] = [ (1/5) ^ -4x]

(5^8) × (5^4) = 5^4x

5^8+4 = 5^4x

5^12 = 5^4x

12 = 4x

or

4x = 12

x = 12/4

∴ x = 3

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