Name
Solving by completing the square
x=2
x = 3 x = -9
x =- 5 x = -7
x = 7 x = -1
x=4 x=2
x2 - 8x + 12 = 0
x2 - 2x - 48 = 0
x2 + 4x - 5 = 0
x2 + 6x + 5 = 0
x = -3
x = -1 x = 5
x=6 x=2
x = 3 x = -5
x =3 x = -1
x2 - 6x - 7 = 0
x2 + 10x + 16 = 0
x2 - 6x + 8 = 0
x2 + 6x - 27 = 0
x = 9 x = -1
x = 3 x = -7
x = -1 x = 2
x = -1 x = 3
x = -1 x = -5
x2 - 4x + 4 = 0
x2 + 2x -35 = 0
x2 + 10x + 21 = 0
x2 - 2x - 3 = 0
x = -1 x = 1
x = 5 x = -7
x =-3 x = -7
x = 5 x = -9
x = -1 x = 6
x2 + 12x + 35 = 0
x2 + 4x -45 = 0
x2 + 2x - 15 = 0
x2 + 4x - 21 = 0
x = -2 x = -8
x = 1 x = -5
x = -3 x = -9
x = 5 x = -1
x = 8 x = -6
x2 + 6x + 9 = 0
x2 + 12x + 27 = 0
x2 - 4x -5 = 0
x2 - 8x - 9 = 0
Missing pair
Name
Solving by completing the square
x = 5 x = -1
x = 9 x = -1
x = -1 x = 2
x = 5 x = -9
x = -2 x = -8
x2 + 4x -45 = 0
x2 + 10x + 16 = 0
x2 + 6x + 9 = 0
x2 + 2x -35 = 0
x =-3 x = -7
x = -1 x = 5
x = 1 x = -5
x=6 x=2
x = 3 x = -9
x2 + 2x - 15 = 0
x2 - 8x + 12 = 0
x2 + 4x - 5 = 0
x2 - 8x - 9 = 0
x=2
x = 3 x = -7
x = -1 x = 1
x=4 x=2
x = -1 x = 6
x2 + 10x + 21 = 0
x2 - 6x - 7 = 0
x2 - 2x - 3 = 0
x2 + 12x + 27 = 0
x = 3 x = -5
x = 5 x = -7
x = -1 x = -5
x = -3 x = -9
x = 7 x = -1
x2 + 4x - 21 = 0
x2 - 6x + 8 = 0
x2 - 2x - 48 = 0
x2 - 4x -5 = 0
x = 8 x = -6
x =- 5 x = -7
x = -3
x = -1 x = 3
x =3 x = -1
x2 - 4x + 4 = 0
x2 + 6x - 27 = 0
x2 + 12x + 35 = 0
x2 + 6x + 5 = 0
Missing pair
www.mathsbox.org.uk
Name
Solving by completing the square
x = 9 x = -1
x = -2 x = -8
x = -3
x = -1 x = 5
x = 1 x = -5
x2 + 2x - 15 = 0
x2 - 8x + 12 = 0
x2 - 6x + 8 = 0
x2 + 12x + 27 = 0
x=2
x = 5 x = -9
x = -1 x = -5
x = 3 x = -7
x =- 5 x = -7
x2 - 4x + 4 = 0
x2 + 4x - 21 = 0
x2 - 8x - 9 = 0
x2 + 10x + 21 = 0
x = -1 x = 6
x = 5 x = -7
x = 5 x = -1
x =-3 x = -7
x = 7 x = -1
x2 + 6x - 27 = 0
x2 + 6x + 9 = 0
x2 - 6x - 7 = 0
x2 + 6x + 5 = 0
x = -1 x = 1
x = -1 x = 2
x = -1 x = 3
x = 3 x = -5
x = 8 x = -6
x2 - 2x - 3 = 0
x2 + 12x + 35 = 0
x2 - 2x - 48 = 0
x2 + 2x -35 = 0
x =3 x = -1
x = -3 x = -9
x=6 x=2
x=4 x=2
x = 3 x = -9
x2 + 4x - 5 = 0
x2 + 10x + 16 = 0
x2 - 4x -5 = 0
x2 + 4x -45 = 0
Missing pair
Name
Solving by completing the square
x = -1 x = 2
x =-3 x = -7
x=2
x = 5 x = -9
x =- 5 x = -7
x2 + 4x - 5 = 0
x2 - 2x - 48 = 0
x2 + 4x -45 = 0
x2 - 8x + 12 = 0
x = 5 x = -7
x = 7 x = -1
x = -1 x = 5
x = -2 x = -8
x = 9 x = -1
x2 - 8x - 9 = 0
x2 + 6x + 5 = 0
x2 + 4x - 21 = 0
x2 + 10x + 16 = 0
x = 3 x = -5
x = -1 x = 6
x = -3
x = -3 x = -9
x =3 x = -1
x2 + 2x - 15 = 0
x2 + 6x - 27 = 0
x2 - 2x - 3 = 0
x2 + 12x + 27 = 0
x=4 x=2
x = -1 x = 1
x = 5 x = -1
x=6 x=2
x = 8 x = -6
x2 - 4x -5 = 0
x2 + 2x -35 = 0
x2 + 10x + 21 = 0
x2 - 6x + 8 = 0
x = -1 x = 3
x = -1 x = -5
x = 1 x = -5
x = 3 x = -9
x = 3 x = -7
x2 + 6x + 9 = 0
x2 - 6x - 7 = 0
x2 - 4x + 4 = 0
x2 + 12x + 35 = 0
Missing pair
www.mathsbox.org.uk