Prove that 3(x+1)(x+7)-(2x+5)² is never positive
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Answer:
A <u>bi-conditional statement</u> represents the idea of "if and only if." Its symbol is a .
Step-by-step explanation:
We have been given an incomplete sentence. We are supposed to fill in the given blank.
A _______ represents the idea of "if and only if." Its symbol is a .
We know that "if and only if" stands for bi-conditional statement, which represents either both statements are true or both are false.
The symbol represent a bi-conditional statement.
Therefore, our complete statement would be: A <u>bi-conditional statement</u> represents the idea of "if and only if." Its symbol is a .