227k views
4 votes
If 3^2+1 =3^x+5. What is the value of x?

User Black Flag
by
5.1k points

2 Answers

3 votes

Answer: 1.46497352 or 1.5

Explanation:

Complete 3^2 to get 9, then add 1 to get 10

Then subtract 5 from both sides to get
5=3^x

Youre gonna have to apply a log rule here to get:


log_(3)5=x

You get 1.46497352 or approximately 1.5

User Oknate
by
5.7k points
1 vote

Answer:


x=1.464974

Explanation:


3^2+1 =3^x+5


9+1 =3^x+5


10 =3^x+5


10-5 =3^x


5=3^x


log(3x)=log(5)


x * (log(3))=log(5)


x=(log(5))/(log(3))


x=1.464974

User Magnetik
by
5.2k points
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