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

3170 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

The perimeter of an isosceles triangle is 16cm the lengths of the sides are (x+3)(this is the length of the opposite side as well) and (x+4). Determine the value of x .


How do I factorise quadratic equations?


Solve the Simultaneous equations '2x-3y=24' and '6x+2y=-5'


Sean wants to go on holiday. He is going to get a loan of £ 720 to help pay for the holiday. Sean will have to pay back the £ 720 plus interest of 15 %. He will pay this back in 12 equal monthly installments. How much money will Sean pay back each month?


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:

© 2026 by IXL Learning