SOLUTION: what two numbers multiply to get 1600 but add to get 4? My problem: H2* + 4H - 1600 **superscript: exponent Thank you so much!!!

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Question 946273: what two numbers multiply to get 1600 but add to get 4?
My problem:
H2* + 4H - 1600
**superscript: exponent
Thank you so much!!!
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
what two numbers multiply to get 1600 but add to get 4?
--------------
x*y = 1600
x + y = 4
-------
y = 4-x
x*(4-x) = 1600

Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)
Quadratic equation (in our case ) has the following solutons:



For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

The discriminant -6384 is less than zero. That means that there are no solutions among real numbers.

If you are a student of advanced school algebra and are aware about imaginary numbers, read on.


In the field of imaginary numbers, the square root of -6384 is + or - .

The solution is , or
Here's your graph:

================
No real number solutions.
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