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If [tex]\left(3^3\right)^2=9^x[/tex], then [tex]5^x=[/tex] ?

Sagot :

Sure, let's solve the given equation step-by-step to determine the value of [tex]\(5^x\)[/tex].

We start with the given equation:
[tex]\[ (3^3)^2 = 9^x \][/tex]

First, simplify the left-hand side of the equation:
[tex]\[ (3^3)^2 \][/tex]
By using the power rule [tex]\((a^m)^n = a^{m \cdot n}\)[/tex], we can rewrite this as:
[tex]\[ 3^{3 \cdot 2} = 3^6 \][/tex]

Next, simplify the right-hand side of the equation. Recall that [tex]\(9\)[/tex] can be written as [tex]\(3^2\)[/tex]:
[tex]\[ 9^x = (3^2)^x \][/tex]
Using the same power rule, we rewrite this as:
[tex]\[ (3^2)^x = 3^{2x} \][/tex]

Now we have the equation:
[tex]\[ 3^6 = 3^{2x} \][/tex]

Since the bases are the same, we can equate the exponents:
[tex]\[ 6 = 2x \][/tex]

Solving for [tex]\(x\)[/tex]:
[tex]\[ x = \frac{6}{2} = 3 \][/tex]

Now that we have found [tex]\(x = 3\)[/tex], we need to determine [tex]\(5^x\)[/tex]:
[tex]\[ 5^x = 5^3 \][/tex]

Calculating [tex]\(5^3\)[/tex]:
[tex]\[ 5^3 = 125 \][/tex]

Therefore, the value of [tex]\(5^x\)[/tex] is:
[tex]\[ \boxed{125} \][/tex]