Answer:
Explanation:
The numbers you are looking for are the solutions to the quadratic equation x^2 + bx + c = 0, where b is the sum of the numbers and c is their product. In this case, b = -10 and c = -81. Using the quadratic formula, we can find that the solutions to this equation are x = (-b +/- sqrt(b^2 - 4ac)) / 2a. Plugging in the values for a, b, and c, we get x = (10 +/- sqrt(100 + 324)) / 2. This simplifies to x = (10 +/- sqrt(424)) / 2. The two numbers that add to -10 and multiply to -81 are (10 + sqrt(424)) / 2 and (10 - sqrt(424)) / 2.