Byron S. answered • 11/14/14

Math and Science Tutor with an Engineering Background

As I mentioned in my solution to one of your other problems, you can solve this by setting up a system of equations based on each unknown coefficient.

If w

**A**+ x**B**+ y**C**+ z**D**= 0,then you can write 4 equations, starting with

w*0 + x*2 + y*2 + z*-2 = 0

and solve the system for those 4 variables using your favorite method. The algebra for this is tedious to do by hand; WolframAlpha suggests a solution starting with w=5.