find the real solutions of each equation by graphing.
2x^4=9x^2-4
To find the real solutions of the equation 2x^4 = 9x^2 - 4 by graphing, we can follow these steps:
1. Rewrite the equation in the form f(x) = 0:
2x^4 - 9x^2 + 4 = 0
2. Plot the equation on a graphing tool or software.
3. Look for the x-intercepts, which are the points where the graph crosses the x-axis. These points correspond to the real solutions of the equation.
Alternatively, if you don't have access to graphing tools, you can approximate the solutions by estimating the values of x for which f(x) is close to zero. You can do this by plugging in different values of x into the equation and checking how close the resulting value is to zero. However, this method is less accurate compared to graphing.