What two numbers multiply to -420 and add up to -64?

Here we answer the question: "What two numbers multiply to -420 and add up to -64?"

The answer to your question is:

-70 and 6

Below we illustrate and prove that -70 and 6 multiply to -420 and add up to -64:

-70 × 6 = -420
-70 + 6 = -64

Are you asking because you are trying to figure out how to factor the following quadratic equation?

x² - 64x - 420 = 0

If so, the solution to factor the quadratic equation above is:

(x - 70 ) (x + 6)

To summarize, since -70 and 6 multiply to -420 and add up -64, you know that the following is true:

x² - 64x - 420 = (x - 70 ) (x + 6)

Multiply To One Number and Add Up To Another
Did you find the information on this page useful? Here you can solve a similar problem.