Solve x^2+10x+5=0 using completing the square.

Completing the square is one of the 3 common ways to solve a quadratric equation (other two being factorising and using the quadratic formula).Using completing the square method, you manipulate the first two terms (x2+10x). This is done by putting these two in a bracket and squaring the bracket. First you divide the 2nd term (10x) by 2 and and create a bracket so that it is (x+5When you expand thi s

VV
Answered by Vijendra V. Maths tutor

4080 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

There are 10 boys and 20 girls in a class. The class has a test. The mean mark for all the class is 60. The mean mark for the girls is 54. Work out the mean mark for the boys.


GCSE Maths: Expand and simpify 14(3x-7y)-2x(21-y)


Solve the simultaneous equations: y=2x+2, y=x^2 - 1


Solve the simultaneous equations: y=x/2 + 2 and 2y+3x=12


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning