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 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 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 numbers multiply into 150 and add to -19?
To solve this problem, we are looking for two numbers that multiply to 150 and add to -19. Let’s break it down: Product of the two numbers: The two numbers should multiply to give 150. Sum of the two numbers: The same two numbers should add up to -19.
What two numbers multiply to 280 and add up to 27?
307
What are all Fibonacci numbers?
start with 0,1 add together =1 add to sequence, gives 0,1,1 add last two numbers =2 add to sequence, gives 0,1,1,2 add last two numbers =3 add to sequence, gives 0,1,1,2,3 add last two numbers = 5 add to sequence, gives 0,1,1,2,3,5 repeat forever, list is endless
How do you find the product of two numbers do you add them together or multiply?
Product = multiply.
What numbers add and multiply to get 105.8?
There are infinitely many pairs of numbers that will add to 105.8 and infinitely many pairs of numbers that will multiply to 105.8 but there are no pair that will add AND multiply. I do not think there are larger sets, but I could be wrong. One example of a triplet adding and multiplying to the same number is 1, 2 and 3. They add to 6 and multiply to 6.
