Final answer:
A quadratic equation with roots {5,1} is found by multiplying the factors (x - 5) and (x - 1), which results in the equation x² - 6x + 5 = 0.
Step-by-step explanation:
To write a quadratic equation in the form x² + bx + c = 0 with given roots, you can use the roots to determine the factors of the equation. For the roots {5,1}, the factors would be (x - 5) and (x - 1). To find the quadratic equation, you simply multiply these two factors together.
Here is the calculation:
- (x - 5) * (x - 1) = x² - x - 5x + 5
- Combining like terms gives us x² - 6x + 5
Therefore, the quadratic equation with the roots {5,1} is x² - 6x + 5 = 0.