Learn how to solve special products problems step by step online. Expand the expression j(m-n)^2-(p+q)^2. A binomial squared (difference) is equal to the square of the first term, minus the double product of the first by the second, plus the square of the second term. In other words: (a-b)^2=a^2-2ab+b^2. Multiply the single term j by each term of the polynomial \left(m^2-2mn+n^2\right). Expand the expression \left(p+q\right)^2 using the square of a binomial. Take the square of the first term: p.

Expand the expression j(m-n)^2-(p+q)^2