Factorise x^2+3x+4 without the use of quadratic formula

We use the form ax^2+bx+cTo factorise we need to put the equation into 2 bracketsThese 2 brackets will be in the form (x+k)(x+j) where k and j are to be foundWe need to find a combination of k and j for which k+j=b and k*j=c
For this example:(x+1)(x+2)

WC
Answered by William C. Maths tutor

3146 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve 4(x–5)=18


There are "n" sweets in a bag, six are orange and the rest are yellow. If you take a random sweet from the bag and eat it. Then take at random another one and eat it. The probability of eating two orange sweets is 1/3. Show that n²-n-90=0.


Factorise fully y=x^2+x-12 and hence find the roots of the curve


Expand and simplify (3x^2 + 2)(2x + 5) – 6x(x^2 – 3)


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