`x^(2)-12x+36=0`
`{:("Quantity A","Quantity B"),(x,6):}`

Answer

To solve the quadratic equation \( x^2 - 12x + 36 = 0 \) and compare Quantity A (x) and Quantity B (6), we can follow these steps:

### Step 1: Write the quadratic equation
We start with the equation:
\[ x^2 - 12x + 36 = 0 \]

### Step 2: Factor the quadratic equation
We can factor the quadratic expression. Notice that:
\[ x^2 - 12x + 36 = (x - 6)(x - 6) = (x - 6)^2 \]
Thus, we can rewrite the equation as:
\[ (x - 6)^2 = 0 \]

### Step 3: Solve for x
To find the value of \( x \), we set the factored expression equal to zero:
\[ x - 6 = 0 \]
Solving for \( x \) gives:
\[ x = 6 \]

### Step 4: Compare Quantity A and Quantity B
Now we have:
- Quantity A: \( x = 6 \)
- Quantity B: \( 6 \)

Since both quantities are equal, we conclude that:
\[ \text{Quantity A} = \text{Quantity B} \]

### Final Conclusion
Thus, the answer is that Quantity A is equal to Quantity B.

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