What two numbers have a product of 60 and a sum of -88?




To find the answer to "What two numbers have a product of 60 and a sum of -88?" we first state what we know. We are looking for x and y and we know that x • y = 60 and x + y = -88.

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 = -88 and solve it for y to get y = -88 - x. Then, we replace y in x • y = 60 with -88 - x to get this:

x • (-88 - x) = 60

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 60 and a sum of -88. The numbers are:

-87.31282
-0.68718


That's it! The two numbers that have a product of 60 and a sum of -88 are -87.31282 and -0.68718 as proven below:

-87.31282 • -0.68718 ≈ 60

-87.31282 + -0.68718 = -88

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

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