Find the Missing Term in (3x-8)(-4+?) = -3x²-4x+32

Complete the missing element

(3x8)(4+?)=3x24x+32 (3x-8)(-4+?)=-3x^2-4x+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 Complete the missing term
00:03 Substitute Y as unknown
00:08 Open parentheses properly, multiply each factor by each factor
00:29 Calculate the products
00:44 Reduce what's possible and collect terms
01:09 Factor out common terms from each side
01:18 Isolate the unknown Y
01:24 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

Complete the missing element

(3x8)(4+?)=3x24x+32 (3x-8)(-4+?)=-3x^2-4x+32

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Expand the binomial expression using the distributive property.
  • Step 2: Compare the resulting polynomial's coefficients with the given expression's coefficients.
  • Step 3: Solve for the missing element.

Now, let's work through each step:
Step 1: Express (3x8)(4+?)(3x-8)(-4+?) using the distributive property:
(3x)(4)+(3x)(?)(8)(4)(8)(?)(3x)(-4) + (3x)(?) - (8)(-4) - (8)(?).
This simplifies to: 12x+3x(?)+328(?)-12x + 3x(?) + 32 - 8(?).

Step 2: Compare with 3x24x+32-3x^2 - 4x + 32, equaling terms by degree:
- The constant term (32) already matches.
- The xx term is 12x+3x(?)=4x-12x + 3x(?) = -4x.
- The x2x^2 term arises from 3x(?)3x(?).

Step 3: Solve for the missing element by aligning coefficients:
3x(?)=3x23x(?) = -3x^2, therefore ?=x? = -x.
Thus, the missing element is x-x.

Therefore, the solution to the problem is x-x, which corresponds to choice 2.

3

Final Answer

x -x

Practice Quiz

Test your knowledge with interactive questions

It is possible to use the distributive property to simplify the expression below?

What is its simplified form?

\( (ab)(c d) \)

\( \)

🌟 Unlock Your Math Potential

Get unlimited access to all 18 Algebraic Technique 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