Practice problem
Simplify (a+b)(c−d)(a + b)(c - d)(a+b)(c−d).
ab−cdab - cdab−cd
ac−bdac - bdac−bd
ac+bc−ad−bdac + bc - ad - bdac+bc−ad−bd
ac+bc−cdac + bc - cdac+bc−cd
Type a concept, like “slope” or “photosynthesis”.
