Question
upstudy study bank question image url

Solve the following equation for \( t \) : \[ \frac{8}{t}-\frac{14}{t+6}=\frac{168}{t^{2}-36} \] Help: If there is more than one correct answer, enter our answers as a comma separated list. If the equation tas no real solution, write "No Solution."

Ask by Sherman Davison. in South Africa
Mar 08,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

\( t = -8 \)

Solution

Sign in to Unlock Answers for Free!

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

star-icon Unlock

Answered by UpStudy AI and reviewed by a Professional Tutor

The Deep Dive

To solve the equation \[ \frac{8}{t} - \frac{14}{t+6} = \frac{168}{t^{2}-36}, \] first, note that \( t^2 - 36 = (t-6)(t+6) \). We can rewrite the equation as: \[ \frac{8}{t} - \frac{14}{t+6} = \frac{168}{(t-6)(t+6)}. \] Next, let's find a common denominator for the left side. The common denominator will be \( t(t+6) \). Rewriting both fractions yields: \[ \frac{8(t+6) - 14t}{t(t+6)} = \frac{168}{(t-6)(t+6)}. \] Expanding the left side: \[ \frac{8t + 48 - 14t}{t(t+6)} = \frac{168}{(t-6)(t+6)}. \] This simplifies to: \[ \frac{-6t + 48}{t(t+6)} = \frac{168}{(t-6)(t+6)}. \] Cross-multiplying gives: \[ (-6t + 48)(t - 6) = 168t(t + 6). \] Expanding both sides: \[ -6t^2 + 36t + 48t - 288 = 168t^2 + 1008t. \] \[ -6t^2 + 84t - 288 = 168t^2 + 1008t. \] Combining and rearranging: \[ 0 = 168t^2 + 1008t + 6t^2 - 84t + 288, \] \[ 0 = 174t^2 + 924t + 288. \] Now, we can factor this or use the quadratic formula. We will use the quadratic formula \( t = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \): Here, \( a = 174 \), \( b = 924 \), \( c = 288 \): Calculating the discriminant: \[ b^2 - 4ac = 924^2 - 4(174)(288). \] \[ = 853776 - 200256 = 653520. \] Now, since \( 653520 \) is a positive number, we can find the roots: \[ t = \frac{-924 \pm \sqrt{653520}}{2 \cdot 174}. \] Calculating the square root: \[ \sqrt{653520} \approx 808.83, \] thus, \[ t = \frac{-924 \pm 808.83}{348}. \] Calculating both possible solutions: 1. \( t = \frac{-924 + 808.83}{348} \approx -0.3300 \) 2. \( t = \frac{-924 - 808.83}{348} \approx -4.2710 \) Thus, the solutions to the equation are: \[ \boxed{-0.33, -4.27}. \]

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