Best Answer

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

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

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No two numbers exist.for the two numbers to be added to be negative and multiplied to be positive, both numbers must be negative, and the highest possible multiplication for two numbers added to -12 would be (-6 and -6) but multiplied, yields 36. So, no such numbers would exist.

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The numbers are: -25 and -30

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No two numbers exist.for the two numbers to be added to be negative and multiplied to be positive, both numbers must be negative, and the highest possible multiplication for two numbers added to -12 would be (-6 and -6) but multiplied, yields 36. So, no such numbers would exist.

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