What numbers multiply to get - 800 but add to get - 20

Question

Mathematics

Angelique Huerta

14 February, 13:02

What numbers multiply to get - 800 but add to get - 20

+5

Answers (1)

Know the Answer?

Hannah Bowers · Answer 1

Multiply:

-40 * 20 = - 800.

Add: - 40 + 20 = 20 - 40 = - 20

Answer: The numbers are - 40 and 20.

You are meaning to solve a quadratic equation right?

x^2 - 20x - 800 = 0.

Just know that for this format of the quadratic equation the solutions are 40 and - 20.

Solve it and see. This is just a trick.