Question

Find the value of x if:-
1) 3 ki power x+1 = 81​

Answer 1

Answer:

x = 3

Step-by-step explanation:

the given equation is

=> 3^(x+1) = 81

now 81 can be written as 3×3×3×3 or 3^4

the equation becomes

=> 3^(x+1) = 3^4

as the bases are same, so the powers can be equated directly in case of equals to...

=> x+1 = 4

=> x = 4-1

=> x = 3

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Answer 2

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