Answered

Discover a wealth of knowledge and get your questions answered at IDNLearn.com. Ask any question and receive comprehensive, well-informed responses from our dedicated team of experts.

```latex
\begin{tabular}{|l|l|}
\hline
[tex]$x^2 + 4$[/tex] & [tex]$x = 5$[/tex] \\
[tex]$3x^3 - 8$[/tex] & [tex]$x = 2$[/tex] \\
\hline
\end{tabular}
```

Sagot :

GinnyAnsweridn
Sure! Let's solve each expression step-by-step given the specified values for [tex]\( x \)[/tex].

First, we need to solve the expression [tex]\( x^2 + 4 \)[/tex] when [tex]\( x = 5 \)[/tex].

1. Start with the expression: [tex]\( x^2 + 4 \)[/tex]
2. Substitute [tex]\( x \)[/tex] with 5: [tex]\( 5^2 + 4 \)[/tex]
3. Calculate [tex]\( 5^2 \)[/tex]: [tex]\( 5^2 = 25 \)[/tex]
4. Add 4 to 25: [tex]\( 25 + 4 = 29 \)[/tex]

So, the value of [tex]\( x^2 + 4 \)[/tex] when [tex]\( x = 5 \)[/tex] is 29.

Next, let's solve the expression [tex]\( 3x^3 - 8 \)[/tex] when [tex]\( x = 2 \)[/tex].

1. Start with the expression: [tex]\( 3x^3 - 8 \)[/tex]
2. Substitute [tex]\( x \)[/tex] with 2: [tex]\( 3 \cdot 2^3 - 8 \)[/tex]
3. Calculate [tex]\( 2^3 \)[/tex]: [tex]\( 2^3 = 8 \)[/tex]
4. Multiply 3 by 8: [tex]\( 3 \cdot 8 = 24 \)[/tex]
5. Subtract 8 from 24: [tex]\( 24 - 8 = 16 \)[/tex]

So, the value of [tex]\( 3x^3 - 8 \)[/tex] when [tex]\( x = 2 \)[/tex] is 16.

Summarizing the results:
- For [tex]\( x = 5 \)[/tex], [tex]\( x^2 + 4 = 29 \)[/tex]
- For [tex]\( x = 2 \)[/tex], [tex]\( 3x^3 - 8 = 16 \)[/tex]

Thus, the values are 29 and 16, respectively.
We value your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. Find precise solutions at IDNLearn.com. Thank you for trusting us with your queries, and we hope to see you again.