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i suppose you mean two unknowns
let them be x and y.
x+y=8....................(1)
xy=-5.....................(2)
from (1), x=8-y
substitute this into (2),
(8-y)y=-5
8y-y^2=-5
by solving quadratic equation, there are two possible values:
y=4+sqrt(21) and y=4-sqrt(21)
therefore, the two numbers are (4+sqrt(21)) and (4-sqrt(21))
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What three numbers when multiplied together equals 105?
3, 5 and 7
Why is 18 divided by 4 equals 4.5?
4 multiplied by 4 is equal to 16 .5 multiplied by 4 is equal to 2 16 added to 2 equals 18
What three numbers multiplied together equals 125?
5*5*5
What two positive factor are when added equals to 5 and when multiplied equals to 2?
(5/2 + √17/2) ≈ 4.562, and(5/2 - √17/2) ≈ 0.438
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95
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-9+4
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-2
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8, 5 and 2
What two numbers multiplied together equals -24 but when added together equals -5?
-8 and 3. -8*3=8*3*-1=-24 -8+3=-5
What two numbers when multiplied are equal to -14 but when added together equals to 19?
5
What numbers multiplied together equals -65 but added equals 8?
-57
What two numbers when multiplied OR added together equal 10?
5+5 By quadratic equation the two numbers (roots) are: 8.872983346 and 1.127016653 Added together = 10 Multiplied = 10
What two numbers when added equals negative 10 and when multiplied equals 4?
-5 + √21 ≈ -0.4174 -5 - √21 ≈ -9.5826
What three numbers when multiplied together equals 105?
3, 5 and 7
What numbers when added equal 5 and when multiplied equals -75?
-70
Why is 18 divided by 4 equals 4.5?
4 multiplied by 4 is equal to 16 .5 multiplied by 4 is equal to 2 16 added to 2 equals 18
What three numbers multiplied together equals 125?
5*5*5
