When would I use the quadratic formula?

You would use the quadratic formula when trying to find the value of a variable such as x in a quadratic equation but it can not be successfully factorised with whole numbers. Treating the the equation in the form ax2+bx+c=0 then putting the values into the equation, two values of x will be found from switching the sign in the equation.

 

EO
Answered by Emily O. Maths tutor

4345 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A GCSE is graded out of 140 marks. 1/5 of these marks were given for coursework. The rest were divided between two reading and listening tests, with the marks split in the ratio 3:4 respectively. How many marks were given for the reading test?


Simplify : 4(x+5) / x^2+2x-15


The work in an office takes 200 hours to complete every week. Each person in the office works 35 hours a week. What is the smallest number of people needed to complete the work?


Solve the simultaneous equations 2a + b =4 and 5a – 3b = -1


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