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# What two numbers when added equals negative 10 and when multiplied equal 9?

Updated: 12/18/2022

Wiki User

12y ago

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

Wiki User

12y ago

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Q: What two numbers when added equals negative 10 and when multiplied equal 9?
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