x^2 + 6x + 8

Factorising Quadratics, double bracketsWe want two numbers that multiply to give 8 and add to give 6. Lets list the factors of 8: 1, 2, 4, 8From the list of of numbers above, which 2 can add to give +6?2 and 4so the two brackets will be as follows:(X+2)(x+4).To explain why the brackets have an x in them- the question is x^2, the square root of this is x. Hence why each bracket will need a singular x so that when multiplied out it will give x^2.

MA
Answered by Maariya A. Maths tutor

2752 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do you find the area of a semi circle with a radius of 7cm?


A rectangle has an area of 20 cm2. Its lengths are enlarged by a factor of 3. What is the area of the new rectangle?


In an office there are twice as many females as males. 1/4 of the females wear glasses. 3/8 of the males wear glasses. 84 people in the office wear glasses. Work out the number of people in the office.


Use the equation 2(x+4) + 6(x-1) = 14, to find x.


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