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

4110 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Prove that the difference of the square of two consecutive odd numbers is always a multiple of 8. [OCR GCSE June 2017 Paper 5]


A triangle has sides of 4cm and 5cm with the hypotenuse unknown. What is the length of the unknown side?


How to Solve: (11 − w)/4 = 1 + w


Find x and y using the equations 3x + y= 10, x + y = 4


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