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

10258 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How to solve simultaneous equations?


Solve the following quadratic equation for X: X^2 -10X + 24=0


Solve the simultaneous equations algebraically


Solve the simultaneous equations: 4X+6Y=4 and 7X+5Y=12.5


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