Question

If 3^x = 81 , find
i ) x ii) 3^x+3 iii) 3^x/2 iv ) 3^2x v ) 3^x-6
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Answer 1

Answer:

i) 3^x=(3) ^4

on comparing, we get x=4

ii) =(3)^4+3=81+3=84

iii)=(3) ^4/2=(3) ^2=9

iv) =(3) 8=6561

v) =(3)^4-6=(3) ^-2= 1/9

Answer 2

Answer:

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Step-by-step explanation:

i)x=4

ii)84

iii)40.5

iv)9

v)75