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

7361 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Factorise 5a – 3a^2


1 a. If x=6a+3 and a is 4 what is x? b. Make a the subject of the formula.


All tickets for a concert are the same price. Ayo and Rachel pay £63 total for some tickets. Ayo pays £24.50 for 7 tickets. How many tickets does Rachel buy?


find the second degree equation that passes through the points: (0,1) (2,2) (1,0)


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning