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Q: What two numbers when added equal nine and when multiplied equal negative ninety?

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Related questions

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.

273

3, -15

Negetive 28 and 1

145

24

-8 and 7

9 and negative 24

6 and -5

19

67

-4 and -25

16

-8 and -4

-3 and 6

15 and -3

23

65

-2/3 & 3/2

A positive number added to a negative number may be either positive or negative depending on the magnititude ( absolute value) of the numbers. But a positive number multiplied by a negative number is always negative.

409

A number multiplied by itself added to itself equals 30. What are the two possible numbers?

343

28

Yes. Real numbers can be added, subtracted , multiplied and divided by nonzero numbers in an ordered way. x, for example, is not a real number.