Find the Factorization: x^2 + 12x + 32 as a Product

Quadratic Factoring with Positive Constant Term

Find the representation of the product of the following function

f(x)=x2+12x+32 f(x)=x^2+12x+32

❤️ Continue Your Math Journey!

We have hundreds of course questions with personalized recommendations + Account 100% premium

Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Convert trinom to multiplication
00:03 Identify the trinom coefficients
00:07 We want to find 2 numbers whose sum equals coefficient B
00:14 and their product equals coefficient C
00:18 These are the matching numbers, let's substitute in multiplication
00:25 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Find the representation of the product of the following function

f(x)=x2+12x+32 f(x)=x^2+12x+32

2

Step-by-step solution

To solve the problem of factoring the quadratic expression f(x)=x2+12x+32 f(x) = x^2 + 12x + 32 , we will follow these steps:

  • Identify the pairs of integers whose product is 32.
  • Find the pair that also adds up to 12.
  • Use this pair to express the quadratic in its factored form.

Let's proceed with these steps:

Step 1: List all pairs of integers that multiply to 32:
1 and 32
2 and 16
4 and 8

Step 2: Determine which pair of these adds up to 12:
Checking each:
1+32=33 1 + 32 = 33
2+16=18 2 + 16 = 18
4+8=12 4 + 8 = 12

The pair 4 and 8 adds up to 12.

Step 3: Use this pair to factor the quadratic expression:
Thus, f(x)=(x+4)(x+8) f(x) = (x + 4)(x + 8) .

Therefore, the factored form of f(x)=x2+12x+32 f(x) = x^2 + 12x + 32 is (x+8)(x+4) (x + 8)(x + 4) .

3

Final Answer

(x+8)(x+4) (x+8)(x+4)

Key Points to Remember

Essential concepts to master this topic
  • Factor Pairs: Find two numbers that multiply to 32 and add to 12
  • Technique: Check systematically: 4 × 8 = 32 and 4 + 8 = 12
  • Verify: Expand (x + 4)(x + 8) to get x² + 12x + 32 ✓

Common Mistakes

Avoid these frequent errors
  • Using factor pairs that multiply correctly but add incorrectly
    Don't just find numbers that multiply to 32 like 2 and 16 without checking the sum = wrong factorization! The middle coefficient (12) comes from adding the factors. Always verify both multiplication AND addition before writing your final answer.

Practice Quiz

Test your knowledge with interactive questions

Create an algebraic expression based on the following parameters:

\( a=3,b=0,c=-3 \)

FAQ

Everything you need to know about this question

How do I know which factor pairs to try first?

+

Start with pairs closest to the square root of the constant term. For 32, try 4 and 8 first since they're closest to √32 ≈ 5.7. This often saves time!

What if none of my factor pairs add up to the middle coefficient?

+

Then the quadratic cannot be factored using integers. You might need to use the quadratic formula or complete the square instead. Not all quadratics factor nicely!

Why are both factors positive in this problem?

+

Because both the middle term (+12x) and constant term (+32) are positive. When both are positive, both factors must be positive to give the correct signs.

How can I double-check my factorization is correct?

+

Use FOIL to multiply your factors back out: (x+4)(x+8)=x2+8x+4x+32=x2+12x+32 (x+4)(x+8) = x^2 + 8x + 4x + 32 = x^2 + 12x + 32 . It should match the original!

What if I write the factors in different order like (x+8)(x+4)?

+

That's perfectly fine! Multiplication is commutative, so (x+4)(x+8)=(x+8)(x+4) (x+4)(x+8) = (x+8)(x+4) . Both orders are correct answers.

🌟 Unlock Your Math Potential

Get unlimited access to all 18 Ways of Representing the Quadratic Function questions, detailed video solutions, and personalized progress tracking.

📹

Unlimited Video Solutions

Step-by-step explanations for every problem

📊

Progress Analytics

Track your mastery across all topics

🚫

Ad-Free Learning

Focus on math without distractions

No credit card required • Cancel anytime

More Questions

Click on any question to see the complete solution with step-by-step explanations