Find x when 2x^2-4x-6=0

Factorise 2x2-4x-6=0

2(x2-2-3)=0   ->    2(x+1)(x-3)=0

split factors up       2=0 ,  (x+1)=0   and   (x-3)=0     

                                x+1=0  ->  x = -1

                                x-3=0   ->  x = 3 

Answered by India G. Maths tutor

2733 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve x/(x-7) + 6/(x+4) = 1


What is the general equation for a straight graph line and what does each part represent?


Find the equation of the tangent to y = 2x^2 + 7 at x = 3.


How do I work out probability when a random choice is repeated?


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