Question

Which of the following is a binomial?

• A. $-7z$
• B. $z^2-4y^2$
• C. $x^{2}y-x{y}^2+y^2$
• D. $12a-9ab+5b-3$

Answer 1

The correct option is B $z^2-4y^2$

A Binomial has two terms in it.
From the given options, $z^2-4y^2$is the only expression with two terms.
So, option 'b' is correct.