First, set one of the number to X and the other to Y.
Then, write out the equation: X+Y=3 , X*Y=9
On this equation: X+Y=3 , move any variable to one side(For this I will move variable X).
So Y= 3-X.
Replace 3-X in the MULTIPLICATION EQUATION.
So it becomes X*(3-X)=9
SOLVE
-X2+3X=9
Multiply both sides by "-1"
X2-3X=-9
Add 9 to both sides
X2-3X+9=0
COMPLETE THE SQUARE
X2-3X+(9/4)+9=0
Factor!!
(X-3/2)2+9=0
Subtract 9 on both sides
(X-3/2)2=-9
square root both sides
(X-3/2)=3i.................. i is called an imaginary number
Add 3/2 to both sides
X=3/2+3i So X=3/2+3i
Plug this into the easiest equation that you can use(out of the original equation: X+Y=3 , X*Y=9)
It seems like X+Y=3 is the easiest equation. Replace X to 3/2+3i
3/2+3i+Y=3
Subtract 3/2+3i on both sides
then Y= 3/2-3i
So the answer is X=3/2+3i and Y= 3/2-3i
Two equal numbers mutiplied is the square root of that number. The answer is 14.002856.
The two consecutive numbers which when added equal 59 are 29 and 30.
two prime numbers when added together will equal 63: 2 + 61
-222
The numbers are 55.5 and 44.5
Two equal numbers mutiplied is the square root of that number. The answer is 14.002856.
The two consecutive numbers which when added equal 59 are 29 and 30.
two prime numbers when added together will equal 63: 2 + 61
79
The numbers are 1 and 10.
-222
When added? multiplied?
4
-66
6 and -5
multiplication algorithm What?? The answer is: their product.
-1540