Hi again Kath;
You are like me. When I was in school, the Holidays were an opportunity to catch-up on homework. I never learned how to baste a turkey. Larry is doing all of the cooking today. I cannot even make the frozen corn.
(5x + 3)(x-4)
First, I would like to correct your English. These are not brackets. Brackets are [ and ]. These are parentheses. We have to resolve two parenthetical equations.
You may already know that a negative number multiplied by a positive number results in a negative number.