Can you please explain how to expand two brackets, eg. (3x-7)(5x+6)

When I am expanding brackets I use the acronym FOIL and simplify. You begin by multiply the first term (F) in each bracket, followed by multiplying the outside terms (O), then the inside terms (I) and finally the last terms (L) in each bracket. Once the brackets have been expanded, it might be possible to simplify this expression. Answers should always be left in the simplest form.(3x-7)(5x+6)=3x(5x)+3x(6)+(-7)(5x)+(-7)(6)=15x2+18x-35x-42=15x2-17x-42

Related Maths A Level answers

All answers ▸

Find the roots of x^3 + 4x^2 - 5x


Differentiate y = lnx + 4x^2 + 3e^4x with respect to x


What is differentiation and how is it used?


Find the centre coordinates, and radius of the circle with equation: x^2 + y^2 +6x -8y = 24


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences