Questions: Use inductive reasoning to find the next equation
2^2 - 1^2 = 3
3^2 - 1^2 = 8
5^2 - 2^2 = 21
Transcript text: Use induclive reasoming to find next equation
\[
\begin{array}{l}
2^{2}-1^{2}=3 \\
3^{2}-1^{2}=8 \\
5^{2}-2^{2}=21
\end{array}
\]
Solution
Solution Steps
To find the next equation using inductive reasoning, we need to identify a pattern in the given equations. Observe the differences between the squares and the results. Once the pattern is identified, apply it to find the next equation.
Step 1: Identify the Pattern
We start with the given equations:
\[
\begin{align_}
2^{2} - 1^{2} &= 3 \\
3^{2} - 1^{2} &= 8 \\
5^{2} - 2^{2} &= 21
\end{align_}
\]
We observe the first numbers \(2\), \(3\), and \(5\) and their corresponding results \(3\), \(8\), and \(21\). The differences between the first numbers suggest a pattern.
Step 2: Calculate the Next First Number
The differences between the first numbers are:
\[
3 - 2 = 1 \quad \text{and} \quad 5 - 3 = 2
\]
Continuing this pattern, we add \(2\) to the last first number \(5\):
\[
5 + 2 = 7
\]
Step 3: Calculate the Next Result
Using the identified pattern, we calculate the next result:
\[
7^{2} - 2^{2} = 49 - 4 = 45
\]
Final Answer
The next equation in the sequence is:
\[
7^{2} - 2^{2} = 45
\]
Thus, the final answer is:
\[
\boxed{7^{2} - 2^{2} = 45}
\]