Equations

1.

Make a function that can solve two linear equations with two unknowns. The solution should be returned through pointer parameters or reference parameters. Make a program that inputs the six coefficients, calls the function, and outputs the solution.

2.

Make a function that solves a quadratic equation, and a program that uses this function. The function should return the number of solutions as well as the solutions (if any) to the calling program.

In case you've forgotten everything you've learned in math, here are the formulae:

Discriminant