To solve the equation by graphing, make functions out of the left-hand side and right-hand side. Then enter them into the calculator.
No real roots.
Practice makes perfect
To solve the equation by graphing, we will write the equation's two sides as separate functions.
y=x^4+3x^2-2x+5 and y=0
You can enter these into a graphing calculator by pushing Y= and typing the right-hand side in the two first rows.
By pushing GRAPH, the calculator will draw the equations. To get a better view of the functions, re-size the standard window by pushing the WINDOW button. Change the settings to a more appropriate size and then push GRAPH.
We see that the graphs intersect zero times, so there are zero solutions to this equation.
There are no real roots.
