baileyboo358p3c0ve baileyboo358p3c0ve
  • 24-08-2018
  • Mathematics
contestada

Solve absolute value equation. Check for extraneous solution. |2x-3|=2x-1. Post it into the drop box for the unit 2 review.

Respuesta :

jdoe0001 jdoe0001
  • 24-08-2018

let's keep in mind that, an absolute value expression is in effect a piecewise one, since it has a ± versions of it.


[tex] \bf |2x-3|=2x-1\implies \begin{cases}+(2x-3)=2x-1\\-(2x-3)=2x-1\end{cases}\\\\[-0.35em]~\dotfill\\\\+(2x-3)=2x-1\implies 2x-3=2x-1\implies -3 \ne -1\impliedby extraneous\\\\[-0.35em]~\dotfill\\\\-(2x-3)=2x-1\implies 2x-3=-2x+1\implies 4x=4\\\\\\x=\cfrac{4}{4}\implies x=1 [/tex]

Answer Link

Otras preguntas

how much interest will be paid in 2 years for a loan of $1500 at 8.25% simple interest ?
A DNA segment is changed from -AATTAG- to -AAATAG-. This is a_______.
Three single-digit numbers multiply to make 504          Write the missing numbers
2r-4/r-2 please help
translate question into an equation, let x be unknown number 6.4 is 90% of what number?
How can you do this question about standard form?
whats a good introduction and thesis statement for a drug abuse essay?
which ratio is the same proportion as 36:64 in fraction
benito read 14 books in 3 months, which was 35% of the number of books he had signed up to read during the school year .how many books did Benito sign up to rea
which fraction is equivalent to 68%