Factorise and solve x^2 + 3x - 4 = 0

To factorise this equation, we must find two numbers that add together to make and multiply to make -4. These numbers must be -3 and -1. We would then rewrite the equation as (x-3)(x-1)=0.

To solve this equation, we need to make either (x-3)=0 or (x-1)=0. This means that there are two solutions to this question.

x-3=0 and x-1=0

This means x=3 or x=1.

DJ
Answered by Dylan J. Maths tutor

9927 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A ladder 7.4m long is leaning against a wall as shown in the diagram. The foot of the ladder is 2.9m away from the wall. Calculate the distance the ladder reaches up the wall to 2 significant figures.


If 3(x-2)-4(x+5)=10 , what is the value of x?


Solve the equation: (2x+3)/(x-4)-(2x-8)/(2x+1)=1


Give the prime factorisation of 630


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