Can you help me solve the equation x^2+3x-5

We can see right off the bat that this is a quadratic equation. As always with quadratics, it is easiest to see if it factorises first. To factorise, you need to find two numbers that multiply together to create the last number and sum to give the coefficient of x. However, in this circumstance, no real numbers fit these requirements, therefore, we need to find another way to solve the equation. This is where the quadratic formula comes in. Using the quadratic formula and inputing the numbers accordingly, where a = 1, b = 3, and c = -5, we can solve for x. Therefore x = (-3(+/-)(sqrt(29))/2.

MS
Answered by Mollie S. Maths tutor

3842 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do you expand brackets?


State the nth term of the following sequence: 3,7,11,15,19...


x^2-12x+20=0 Find x


Rearrange the formula: m = 2ab/4c+b to make b the subject


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