Question
upstudy study bank question image url

What is the difference between \( 8 x^{3}-2 x^{2}+5 x-7 \) and \( 5 x^{3}-3 x^{2}-2 x+4 ? \)

Ask by Ingram Gough. in the United States
Mar 12,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

The difference is \(3x^3 + x^2 + 7x - 11\).

Solution

We need to compute the difference between \[ 8x^3-2x^2+5x-7 \] and \[ 5x^3-3x^2-2x+4. \] This is equivalent to subtracting the second polynomial from the first: \[ (8x^3-2x^2+5x-7)-(5x^3-3x^2-2x+4). \] **Step 1. Distribute the subtraction:** \[ 8x^3-2x^2+5x-7-5x^3+3x^2+2x-4. \] **Step 2. Combine like terms:** - For the \(x^3\) terms: \[ 8x^3-5x^3=3x^3. \] - For the \(x^2\) terms: \[ -2x^2+3x^2=x^2. \] - For the \(x\) terms: \[ 5x+2x=7x. \] - For the constant terms: \[ -7-4=-11. \] **Step 3. Write the final result:** \[ 3x^3+x^2+7x-11. \]

Answered by UpStudy AI and reviewed by a Professional Tutor

error msg
Explain
Simplify this solution

Bonus Knowledge

To find the difference between the two polynomials, we subtract the second polynomial from the first: \[ (8 x^{3}-2 x^{2}+5 x-7) - (5 x^{3}-3 x^{2}-2 x+4). \] Now, distributing the negative sign gives us: \[ 8 x^{3} - 2 x^{2} + 5 x - 7 - 5 x^{3} + 3 x^{2} + 2 x - 4. \] Next, combine like terms: - For \( x^{3} \): \( 8 x^{3} - 5 x^{3} = 3 x^{3} \) - For \( x^{2} \): \( -2 x^{2} + 3 x^{2} = 1 x^{2} \) - For \( x \): \( 5 x + 2 x = 7 x \) - For the constants: \( -7 - 4 = -11 \) So the difference is: \[ 3 x^{3} + 1 x^{2} + 7 x - 11. \] Now, let's keep the math fun! This polynomial can be thought of like a recipe: you start with a heaping scoop of \( x^3 \) goodness, sprinkle in a pinch of \( x^2 \), mix in some \( x \), and finish off with a dash of negative flair. When you combine them, what you get is a delightful blend of algebraic flavors that's all uniquely yours! If you’re keen to dive deeper into polynomial operations, you might want to explore synthetic division or long division of polynomials. These techniques can help simplify and solve more complex polynomial problems, making you a polynomial chef in no time!

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy