Solve x^2 + 7x + 10 = 0

First factorise the quadratic into the form (x + a)(x + b) = 0.This will make x^2 + ax + bx + ab = 0.Work out a and b so that a + b = 7 and ab = 10.a = 5 b = 25+2 = 7 52 = 10.

Answered by Simone K. Maths tutor

2513 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

What is a vector and how do I calculate the 'modulus' of a vector?


10 The table gives information about the heights of 50 trees. Height (h metres) Frequency 0 < h - 4 ,8, 4 < h - 8 ,21, 8 < h - 12, 12, 12 < h - 16, 7, 16 < h - 20, 2. Work out an estimate for the mean height of the trees.


Find dy/dx for the following equation: f(x) = x^7 + 7x


How do I think of coordinates of a point?


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 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences