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If [tex]\(3^{2x+1}=3^{x+5}\)[/tex], what is the value of [tex]\(x\)[/tex]?

A. 2
B. 3
C. 4
D. 6


Sagot :

To solve the equation [tex]\(3^{2x + 1} = 3^{x + 5}\)[/tex], we can make use of the property of exponents that states if the bases are the same, then the exponents must be equal.

Given:
[tex]\[3^{2x + 1} = 3^{x + 5}\][/tex]

Since the bases are identical (base 3), we can set the exponents equal to each other:
[tex]\[2x + 1 = x + 5\][/tex]

Now, we solve for [tex]\(x\)[/tex]:

1. Subtract [tex]\(x\)[/tex] from both sides of the equation:
[tex]\[2x + 1 - x = x + 5 - x\][/tex]
Simplifying, we get:
[tex]\[x + 1 = 5\][/tex]

3. Subtract 1 from both sides:
[tex]\[x + 1 - 1 = 5 - 1\][/tex]
Simplifying, we get:
[tex]\[x = 4\][/tex]

So, the value of [tex]\(x\)[/tex] is [tex]\(4\)[/tex].

Thus, the correct answer is:
[tex]\[4\][/tex]