Our sum is –8.

Our product is –48.

We have opposite signs.
Who are we?

-12 and +4

1.We are a pair of real numbers.

2. We may be roots of a quadratic equation.

3. Our sum is –8.

4. Our product is –48.

5. We have opposite signs.

Who are we?
ANSWER: –12, 4

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I am a biological process

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My name comes from a Latin word, which literally means “glueing to”

My name is commonly used in blood grouping.

In microbiology, I am commonly used as a method of identifying specific bacterial antigens and the identity of such bacteria,

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I am a biological process
My name comes from a Latin word, which literally means “glueing to”
My name is commonly used in blood grouping.
In microbiology, I am commonly used as a method of identifying specific bacterial antigens and the identity of such bacteria,
I am the process that occurs if an antigen is mixed with its corresponding antibody called isoagglutinin.
WHO AM I? → Agglutination