-6x
If x = 3, (4 x 3) + 14 = 26 and (6 x 3) + 8 = 26.
The discriminant of a quadratic ax2 + bx + c is b2 - 4ac; thus: the discriminant of -9x2 + 6x + 14 is 62 - 4 x -9 x 14 = 540
In 6x + 4 = 12, x = 4/3
If: 2x+6x-4 = 52 Then: x = 7
6x+4=52 6x=48 x=8
-6x
If x = 3, (4 x 3) + 14 = 26 and (6 x 3) + 8 = 26.
6x - 14 + 15x + 2 =21x - 12or3 (7x - 4)
The discriminant of a quadratic ax2 + bx + c is b2 - 4ac; thus: the discriminant of -9x2 + 6x + 14 is 62 - 4 x -9 x 14 = 540
In 6x + 4 = 12, x = 4/3
If: 2x+6x-4 = 52 Then: x = 7
6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...
The quadratic expression x2+6x+8 when factorised equals (x+2)(x+4)
6x + 2 = 6 6x = 4 x = 2/3
6x+4 = x+12+4x-6 6x-x-4x = 12-6-4 x = 2
x=5