To determine which quadratic equation has the solution set of 12 and 5, we need to construct the quadratic equation from the given roots. The formula for a quadratic equation based on its roots, r1 and r2, is:
y = (x – r1)(x – r2)
In our case, the roots are 12 and 5. So we can substitute these values into the equation:
y = (x – 12)(x – 5)
Now, we’ll expand this equation:
y = x² – 5x – 12x + 60
Combining the like terms gives us:
y = x² – 17x + 60
Therefore, the quadratic equation with the solution set {12, 5} is:
y = x² – 17x + 60