The correct answer is option B) -7m4n + 18mn - 8m2.
How do you find a polynomial expression?
In particular, for an expression to be a polynomial term, it must contain no square roots of variables, no fractional or negative powers on the variables, and no variables in the denominators of any fractions.
What are the 4 types of polynomials?
They are monomial, binomial, trinomial. Based on the degree of a polynomial, it can be classified into 4 types. They are zero polynomial, linear polynomial, quadratic polynomial, and cubic polynomial.
Learn more about polynomials here: brainly.com/question/2833285
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