x = first number
y = 2nd number
x+ y = -10
y = -10-x
also,
xy = 9
x(-10-x) = 9
-10x -x2 -9 = 0
x2 +10x + 9 = 0
(x+1)(x+9) = 0
X = -1 and substitute find y = -9
Ans: -1, -9
-15
23
313
-19
-39
-5 + √21 ≈ -0.4174 -5 - √21 ≈ -9.5826
A number multiplied by itself added to itself equals 30. What are the two possible numbers?
5
-15
23
The numbers are: -25 and -30
313
-19
-39
273
The two numbers you are looking for are 48 and -28. When multiplied together, 48 × -28 equals -1344, and when added, 48 + (-28) equals 20.
15.268 and 18.732