Question
upstudy study bank question image url

Solve the inequality below. Give the solution using interval notation. Give all values as integers or reduced fractions. (Do not convert fractions to decimals.) \( x^{2}+x<0 \)

Ask by Patel Lawson. in the United States
Feb 04,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

The solution to the inequality \( x^{2} + x < 0 \) is \( (-1, 0) \).

Solution

Sign in to Unlock Answers for Free!

A Learning Platform Trusted by Millions of Real Students and Teachers.

star-icon Unlock

Reviewed and approved by the UpStudy tutoring team

Bonus Knowledge

To solve the inequality \( x^{2}+x<0 \), we first factor the left side: \( x(x+1)<0 \). This product is less than zero when one factor is positive and the other is negative. The critical points to test are where \( x(x+1) = 0 \), which gives us \( x = 0 \) and \( x = -1 \). Now, we test the intervals defined by these critical points: 1. For \( x < -1 \), let’s say \( x = -2 \): \( (-2)(-1) = 2 \) (positive) 2. For \( -1 < x < 0 \), let’s say \( x = -0.5 \): \( (-0.5)(0.5) = -0.25 \) (negative) 3. For \( x > 0 \), let’s say \( x = 1 \): \( (1)(2) = 2 \) (positive) Thus, the solution to the inequality is \( -1 < x < 0 \). In interval notation, this is written as \( (-1, 0) \).

Related Questions

Latest Algebra Questions

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