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 

IG
Answered by India G. Maths tutor

2836 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

The equation of line L1 is y = 3x-2 and the equation of line L2 is 3y-9x+5 = 0. Show that these two lines are parallel.


Simplify (2x+3)^2 - (2x +3)(x-5). Give your answer in the form ax^2 +bx +c


Solve the equation 6x^2 + 17x - 39 = 0


How do I find the expression for the nth term in a series of numbers?


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences