Answer:
Explanation:
A quadratic equation has the general form ax2 + bx + c = 0, where a, b, and c are coefficients and x is the variable.
To convert the above equation "x+9+18=0" to quadratic equation form, we must transfer all of the terms to one side of the equation and set it equal to 0.
The following equation may be rewritten: x+9+18 = 0.
Combining like terms yields: x+27 = 0.
x = -27 after subtracting 27 from both sides.
As a result, the answer to the equation is x = -27. It's not a quadratic formula.