Solve the equation: x^2 - 9x + 20 = 0

This is a quadratic equation, and is likely that x can satisfy either of two values. We know these must multiply to form 20 and summate to -9, and thus they are (x-4) and (x-5). Hence, x is either 4 or 5.

PM
Answered by Pippa M. Maths tutor

6845 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

(x+2)/(x-3) - (x-1)/(x+3) can be written in the form (ax+b)/(x^2-9). Work out the value of a and the value of b.


Solve the following equation. 7x^2 = 13x +2


Solve the simultaneous equations 2x + 7y = 15 and 3x + 6y = 21


A solution to the equation 2x^2-3x-17=0 lies between 2&3 use method of trail and improvement to find the solution


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