What two numbers have a product of 92 and a sum of 31?




To find the answer to "What two numbers have a product of 92 and a sum of 31?" we first state what we know. We are looking for x and y and we know that x • y = 92 and x + y = 31.

Before we keep going, it is important to know that x • y is the same as y • x and x + y is the same as y + x. The two variables are interchangeable. Which means that when we create one equation to solve the problem, we will have two answers.


To solve the problem, we take x + y = 31 and solve it for y to get y = 31 - x. Then, we replace y in x • y = 92 with 31 - x to get this:

x • (31 - x) = 92

Like we said above, the x and y are interchangeable, therefore the x in the equation above could also be y. The bottom line is that when we solved the equation we got two answers which are the two numbers that have a product of 92 and a sum of 31. The numbers are:

3.3242
27.6758


That's it! The two numbers that have a product of 92 and a sum of 31 are 3.3242 and 27.6758 as proven below:

3.3242 • 27.6758 ≈ 92

3.3242 + 27.6758 = 31

Note: Answers are rounded up to the nearest five decimals if necessary so the answers may not be exact.

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