How can do you factorize the equation x^2+6x+8

Here, we see that the term in x in the equation is 6, so we start by looking for a perfect square where the second term would be 6 : we get 6/2 = 3 so we try (x+3)2. However, (x+3)2 = x2+ 6x + 9. We thus have (x+3)2 - 1. We then use the fact that (a+b)(a-b) = a2 - b2 and obtain (x+2)(x+4) = x**2 + 6x + 8. 

MS
Answered by Marine S. Maths tutor

2726 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

A curve has equation y=2x^3. Find dy/dx.


How can I remember trig identities?


Solve the inequality x^2 > 3(x + 6)


Express root(125^x)/5^(2x-1) in terms of 5^a where a is an expression in terms of x.


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