Answer:
9, -2
Explanation:
You want two numbers with a product of -18 and a sum of 7.
Factors
These are easiest if you list the factor pairs of the product. You want to choose them so their sum has the sign of the required sum.
-18 = (-1)(18) = (-2)(9) = (-3)(6)
Sums of these factor pairs are 17, 7, 3.
The pair of numbers you want is -2 and 9.
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