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Sagot :
Answer:
In the expression of 7xy, if x is negative, then y must also be negative for the product to be positive.
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Answer:
it must be negative
Step-by-step explanation:
7xy = a positive number
7 is positive.
x is a negative number.
y must be negative for 7xy to be positive.
(+) * (-) * (-) = +
The product of two negative numbers is positive.
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