hyperbola
y2 - 5y + 2x - x2 - 120 is not a circle. It is a hyperbola rotated through 90 degrees.
x2 + x2 = 2x2
This not a circle, both the squared terms must have the same coefficients if it might be a circle. Different signs indicate a hyperbola.
Assuming you wish to make this equation equal zero, for x2 + 16x + 55 = 0, x = -5.
It equals x2 - 34
The quadratic expression x2+6x+8 when factorised equals (x+2)(x+4)
if x2 + 7 = 37, then x2 = 29 and x = ±√29
x2 + 10x + 21 = (x + 3)(x + 7)
-2
-7.5?
x2 plus 3x plus 3 is equals to 0 can be solved by getting the roots.