Answer :

Sure! Let's solve the expression [tex]\( 7^x \times 7^3 \)[/tex] step-by-step.

1. Expression: We start with the given expression [tex]\( 7^x \times 7^3 \)[/tex].

2. Properties of Exponents: We can simplify the expression using the rule of exponents which states that [tex]\( a^m \times a^n = a^{m+n} \)[/tex]. Here, the base [tex]\( a \)[/tex] is the same (7), so we can add the exponents.
[tex]\[ 7^x \times 7^3 = 7^{x+3} \][/tex]

3. Simplified Expression: Therefore, the simplified form of [tex]\( 7^x \times 7^3 \)[/tex] is [tex]\( 7^{x+3} \)[/tex].

4. Alternative Representation: For better understanding, we can break it down with some specific values. For example, we know:
[tex]\[ 7^3 = 343 \][/tex]

5. Rewriting the Expression: Using the value [tex]\( 7^3 \)[/tex], we can rewrite the original expression as:
[tex]\[ 7^x \times 343 \][/tex]

6. Final Result: So we have two ways to represent the result:
[tex]\[ 7^x \times 7^3 = 343 \times 7^x \quad \text{or} \quad 7^x \times 7^3 = 7^{x+3} \][/tex]

Putting it all together, the original expression [tex]\( 7^x \times 7^3 \)[/tex] can be represented as:
[tex]\[ 343 \times 7^x \quad \text{or simply} \quad 7^{x+3} \][/tex]

These are two equivalent representations of the given expression.