Question

Use the table to answer the question.

x Substituted Evaluate True Statement?
−23
0
12
For the quadratic equation x2+20x=69 , complete the table by testing each of the given values to determine whether it is a solution. Identify which one of these values is in the solution set.

(1 point)
Only x= is in the solution set.

Answers

There are no human answers yet.
Answered by GPT-4o mini
To determine which value(s) is/are in the solution set for the quadratic equation \(x^2 + 20x = 69\), we first need to rearrange the equation:

\[
x^2 + 20x - 69 = 0
\]

Next, we will substitute each value (-23, 0, and 12) into the equation and evaluate to see if the equation holds true (i.e., equals 0).

### Testing each value

1. **For \(x = -23\)**:
\[
(-23)^2 + 20(-23) - 69 = 529 - 460 - 69 = 0
\]
Thus, the statement is true.

2. **For \(x = 0\)**:
\[
(0)^2 + 20(0) - 69 = 0 + 0 - 69 = -69
\]
Thus, the statement is false.

3. **For \(x = 12\)**:
\[
(12)^2 + 20(12) - 69 = 144 + 240 - 69 = 315
\]
Thus, the statement is false.

Now, we summarize the evaluations in the table:

| \(x\) | Substituted | Evaluate | True Statement? |
|---------|---------------------------|--------------------------|------------------|
| -23 | \((-23)^2 + 20(-23) - 69\) | \(0\) | True |
| 0 | \(0^2 + 20(0) - 69\) | \(-69\) | False |
| 12 | \(12^2 + 20(12) - 69\) | \(315\) | False |

### Conclusion

Only \(x = -23\) is in the solution set.

So, the final answer is:
Only \(x = -23\) is in the solution set.

Related Questions