How to solve any single-variable equation using the Shift-Solve function of a Casio fx570ES or 991Es/Plus Calculator

# Category: Calculator Techniques

How to solve a quadratic equation of the form ax^2+bx+c=0 using a Casio fx570ES or 991Es/Plus Calculator

Solve the following given system of equations $latex x-y-4z=3&s=1&fg=000000$ $latex 2x-3y+2z=0&s=1&fg=000000$ $latex 2x-y+2z=2&s=1&fg=000000$ Solution: Please watch the video for the solution.