0
Let the numbers be 'm' & 'n'
Hence
m + n = 2
mn = - 280
It follows that m = 2 - n
Substitute
(2 - n)n = -280
Multiply out the brackets
2n - n^2 = -280
n^2 - 2n - 280 = 0
It is now in Quadratic form. Either use the Quadratic Eq'n or 'Complete the Square'.
n^2 - 2n = 280
(n - 1)^2 - (-1)^2 = 280
(n - 1)^2 = 281
Square root both sides
n -1= sqrt(281)
n = 1 +/- sqrt(281)
What else can I help you with?
What gives you 10 when you add but -56 when you multiply?
-46
What two numbers when multiplied gives 24 when added gives 11?
The two numbers that multiply to 24 and add up to 11 are 3 and 8. When you multiply them, 3 × 8 = 24, and when you add them, 3 + 8 = 11.
What 2 numbers that you multiply 40 at the same time when you add them it gives you -13?
-5 and -8
What numbers do you add to get 11 and multiply to get 210?
221
Plus and minus equals?
That depends what you mean with "and": whether you want to add the numbers, multiply them, etc.That depends what you mean with "and": whether you want to add the numbers, multiply them, etc.That depends what you mean with "and": whether you want to add the numbers, multiply them, etc.That depends what you mean with "and": whether you want to add the numbers, multiply them, etc.
What numbers multiply to 72 and add to -17?
The numbers that multiply to 72 and add to -17 are -8 and -9. When you multiply -8 and -9, you get 72, and when you add them together, you get -17.
What two numbers equal 280 and add to 43?
323
What is 4 58 plus 48?
If you multiply 4 by 58 and add 48, the answer is 280.
What 2 numbers multiply to -72 but add to -29?
The two numbers that multiply to -72 and add to -29 are approximately 3.57 and -32.57.
What two numbers multiply to get 35 and add to 2?
The two numbers that multiply to get 35 and add to 2 are 7 and -5. When you multiply them (7 * -5), you get -35, and when you add them (7 + -5), you get 2. Thus, the numbers are 7 and -5.
What two numbers multiply into -30 and add up to 13?
The two numbers that multiply to -30 and add up to 13 are 15 and -2. When you multiply 15 and -2, you get -30, and when you add them together, you get 13.
What two numbers multiply to 280 and add up to 27?
307
