Mathomatic - Web-Client

Secure Mathomatic version 16.0.5
Copyright © 1987-2012 George Gesslein II.
200 equation spaces available in RAM; 2 megabytes per equation space.
HTML color mode enabled; manage by typing "help color".
Reading in file specified on the command line...
1−> 25a-(12a-(8b-(11a+19b-13c)-5c)+2a)+28b

#1: (25·a) − (12·a) + (8·b) − (11·a) − (19·b) + (13·c) − (5·c) − (2·a) + (28·b)

1−> simplify

#1: (17·b) + (8·c)

1−> clear
1−> ; do something new
1−> 0=2x^2-3x-20

#1: 0 = (2·x^2) − (3·x) − 20

1−> solve x
Equation is a degree 2 polynomial equation in x.
Equation was solved with the quadratic formula.
Solve successful:

        (3 − (13·sign))
#1: x = –––––––––––––––
               4

1−> calculate
There are 2 solutions.

Solution number 1 with sign = 1:
 x = -2.5, with fractions it is: -5/2

Solution number 2 with sign = -1:
 x = 4
1−> 
Successfully finished reading script file "/tmp/mserve.DoiLhE".
1−> 
End of input.