Factorise x^2 + 4x +3

First take the 4x - the two numbers that will be +/- to the x in the brackets will need to add to form this number, so the possibilities are 1 and 3 or 2 and 2.Now take the 3 - the two numbers that will be +/- to the x in the brackets will need to multiply to form this number, so 1 and 3.The number in combination in common is 1 and 3, giving us the answer (x+1)(x+3)

JS
Answered by James S. Maths tutor

6987 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Simplify: 2x + 6y + 2y - x


Rearrange the following to make 'm' the subject. 4(m - 2) = t(5m + 3)


ABC and DEF are similar isoceles triangles. AB=BC=5cm, AC=6cm, DF=12cm. What is the area of DEF?


f is a function such that f(x)=2/(3x-3) Find the inverse function and ff^-1


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences