Solve by completing the square: x^2 - 8x + 12 = 0

x2 - 8x + 12 = 0 (x - 4)2 - 16 + 12 = 0 (x - 4)2 - 4 = 0 (x - 4)2 = 4 x - 4 = +- 2 x = 6 x = 2

JV
Answered by Julianna V. Maths tutor

4002 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Expand and simplify: (10-x)/2 = 2x - 6


How do you complete the square to answer quadratic equations?


Solve algebraically the simultaneous equations: x^2 + y^2 = 25 and y - 3x = 13


f(x)=3x+c g(x)=cx+8 fg(x)=6x+d Work out c and d.


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