Tuesday
September 2, 2014

Homework Help: math-calculus

Posted by Shreya on Wednesday, January 18, 2012 at 12:00am.

solving equations with two absolute value brackets

|x+4| = |x-2|
so i want to know how to do this? do i always have to write out the four piecewise possibilities? that be ++ -+ and +-

++
x+4 = x-2
4 = -2 not solution

-+
-(x+4) = x-2
-x-4 = x-2
-4 = 2x-2
-1 = x solution

+-
x+4 = -(x-2)
x+4 = -x+2
2x+4 = 2
x = -1 solution

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math-calculus - the absolute value function g(x) = |5-x| can be written as a ...
Math - Can someone please help me with an algebra problem? -|4-8b|=12 I really ...
math/calculus - f(x)= the absolute value of x^2-6x-7 a) Find a piecewise defined...
math, help - For the following set, which number has the largest absolute value...
Predicting products for electrolysis - when you have your 4 different equations ...
Algebra 1 - were solving absolute value equations \can you help me out in 1 8-|...
Math - I have a matrix with brackets around [7 6 ][13] [14 -6] [8] and i know ...
math !!!!!!please part of a major grade!!!!!! - when in the absolute value of x ...
Math(check) - 1)Find the range of the relation [(-1,4)},(2,5),(3,5)}.Then ...
math - Calculat the absolute value of: 4-{x-3}=0 PS. The brackets are supposed ...

Search
Members