My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum


Reply
 
LinkBack Thread Tools Display Modes
May 28th, 2018, 02:11 PM   #1
Newbie
 
Joined: Mar 2017
From: Norway

Posts: 12
Thanks: 0

Please help me to solve this quartic equation.

Please help me to solve this quartic equation.
$(6x+7)^2(3x+4)(x+1)=6$

which is the same as:
$108x^4+504x^3+879x^2+679x+190=0$
Farzin is offline  
 
May 29th, 2018, 01:24 AM   #2
Global Moderator
 
Joined: Dec 2006

Posts: 19,712
Thanks: 1806

The equation is equivalent to $(3x + 5)(3x + 2)(12x^2 + 28x + 19) = 0$.

The first two factors can be guessed after plotting the graph of the quartic. The quadratic factor can then be found by division.
skipjack is offline  
Reply

  My Math Forum > High School Math Forum > Algebra

Tags
equation, quartic, solve



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help ! roots of quartic equation. HTsds Algebra 4 December 17th, 2016 06:47 AM
Quartic equation with parameter m goldgold Algebra 5 December 26th, 2014 05:15 AM
Quartic Equation Jopus Algebra 0 May 23rd, 2014 10:38 AM
Quartic equation hoyy1kolko Algebra 6 October 28th, 2011 12:54 AM
Quartic equation with complex roots ally Algebra 2 July 24th, 2008 11:51 AM





Copyright © 2018 My Math Forum. All rights reserved.