Q: When is the product of two negative real numbers always greater than zero?

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The product of negative number and a positive number is always a negative. The product of two positive numbers, or two negative numbers, is always a positive.

No, the product of two negative numbers is always a positive.

Yes, the product of three negative numbers is always a negative number.

The product of all those numbers will always be a negative number.

Yes, if both the numbers have the same sign. But not if only one of them is negative.

No. The product of two opposite numbers is always negative. Negative x positive = negative and Positive x negative = negative

Positive. The product of even numbers of negative integers is always positive, whereas the product of odd nummbers of negative integers is always negative.

If ever you have an odd number of negative numbers, the product will always be a negative number. So the answer to this question is negative.

No. Negative numbers are always smaller than positive numbers.

The product of two mixed numbers is always greater than one (assuming that both of the mixed numbers themselves are greater than one.)

Not always.

no

Not true if either of the numbers is negative.

2 of course. Because 2 is positive and -5 is negative and positive numbers are always greater than negative numbers.

The product of two digit numbers is always greater than either.

Always.

90

No.

Not always, but most of the time.

The product will be greater than 1, when each of the two factors are greater than 1.

It is the same as determining the sign of the product of two integers;+ x + = ++ x - = -- x + = -- x - = +ORIf only positive numbers are multiplied, the result is positive.If positive and an even number of negative numbers (for example, + x - x -) are multiplied, the result is positive.If positive and an odd number of negative numbers (for example, + x + x -) are multiplied, the result is negative.If an even number of negative numbers (for example, - x -) are multiplied, the result is positive.If an odd number of negative numbers (for example, - x - x -) are multiplied, the result is negative.Remember the rule:Product of a positive and a positive fraction is always positive.Product of a positive and a negative fraction is always negative.Product of a negative and a positive fraction is always negative.Product of a negative and a negative fraction is always positive.Examples:½ * ¼ = 1/8½ * -¼ = -1/8-½ * ¼ = -1/8-½ * -¼ = 1/8Source: www.icoachmath.com

Not with negative numbers. -10 is a multiple of -2.

No. The sum of two negative numbers will always be a negative number. If, however, you multiply the numbers, their product will be positive.

3 negative numbers are three negative numbers. There are a lot of things you can do with them: -- You can add them up. Their sum is always a negative number. -- You can add two of them and subtract the third one from the sum. The result could be a positive number or it could be a negative number. It depends on the three negative numbers you started with. -- You can multiply them all together. The product is always a negative number. -- You can multiply all of their absolute values together. The product is always a positive number. -- You can multiply two of them, and divide the product by the third one. The result is always a negative number. -- You can multiply two of them, then raise the product to the power of the third one. The result is always a positive number. -- You can divide one of them by another one, then raise the quotient to the power of the third one. The result is always a positive number. But, as I said at the top, 3 negative numbers are never anything else other than three negative numbers.

No. If one of the numbers is 0 it is less; if one of the numbers is 1 it is the same as one of them; otherwise the product is greater than either