Chapter 4 - Polynomials - 4.7 Polynomials in Several Variables - 4.7 Exercise Set - Page 283: 8

(a) the square of a binomial

RECALL: (1) $(a-b)^2$ is a square of a binomial (2) $(a-b)(a+b)$ is the product of the sum and difference of the same two terms The given expression can be written as: $=(4a-3b)^2$ The expression above is in the same form as the one in part (1) of the recall part. Thus, the given expression is the square of a binomial.