solve for x by completing the square x^2 + 4x - 12

(x+2)2 -16 = 0 (x+2)2 = 16 x+2 = -4 or +4 x = 2 or -6

ER
Answered by Eden R. Maths tutor

2658 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve the quadratic equation x^2 + 4x +1 = 0 by completing the square.


(a) The equation of a line L is 2x-3y=6. Find the gradient of L. (b) Find the equation of the line which is parallel to L and passes through the point (6,9)


Solve algebraically the simultaneous equations x^2 +y^2 = 25, y – 3x = 13


Solve the equation 5(2c -3) = 19


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