Factor the given polynomial $$ x^{2}-9 x+20 $$ Select the correct choice below and, if necessary, fill in the answer box within yo A. $$ x^{2}-9 x+20=\square $$ - B. The polynomial is prime.

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To factor the polynomial $$ x^{2} - 9x + 20 $$, we look for two numbers that multiply to **20** and add up to **-9**.

1. **Identify the factors of 20:**
   - $$1 \times 20$$
   - $$2 \times 10$$
   - $$4 \times 5$$

2. **Determine which pair adds up to -9:**
   - $$4 + 5 = 9$$  
   - $$-4 + (-5) = -9$$

The pair $$-4$$ and $$-5$$ satisfies both conditions.

3. **Write the factored form:**
   $$
   x^{2} - 9x + 20 = (x - 4)(x - 5)
   $$

**Correct Choice:**

**A.**
$$
x^{2} - 9x + 20 = (x - 4)(x - 5)
$$

Choice **B** is incorrect because the polynomial is not prime; it can be factored as shown above.
The polynomial $$ x^{2} - 9x + 20 $$ factors to $$ (x - 4)(x - 5) $$.

Factor the given polynomial

Select the correct choice below and, if necessary, fill in the answer box within yo
A.

B. The polynomial is prime.

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Factor the given polynomial Select the correct choice below and, if necessary, fill in the answer box within yo A. B. The polynomial is prime.