You can solve equations either symbolically or numerically.
GeoGebra solves them automatically when you enter them in
CAS and click
Symbolic Evaluation or
Symbolic Evaluation gives you the exact solution, while
Numeric Evaluation gives you the solution as a possibly approximated decimal number.
If you get as the output, then the equation has no solution. If you get , the equation has one solution, and if you get , the equation has two solutions. Note! Here and represent numbers.
GeoGebra Instruction 1
CAS window. If the right-hand side of the equation is 0, you only need to type the expression on the left-hand side.
Solve in the
Menubar to get the exact solution, or click
Solve Numerically in the
Menubar to solve numerically.
GeoGebra Instruction 2
Algebra View and
Graphics View in the
Algebra View and press
Enter. Give the expressions fitting names.
where the objects correspond to the two expressions. Press
Solve the equation
The picture below shows the solutions to the equation that you get by following the instructions above.