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

Question

Mathematics

Amiah Alvarado

21 October, 17:39

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

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Answers (1)

Know the Answer?

Haylee Levine · 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.