Quadratic Equation

Create a function to find only the root value of x in any quadratic equation ax^2 + bx + c. The function will take three arguments:

• a as the coefficient of x^2
• b as the coefficient of x
• c as the constant term

Examples

quadraticEquation(1, 2, -3) ➞ 1

quadraticEquation(2, -7, 3) ➞ 3

quadraticEquation(1, -12, -28) ➞ 14

Notes

• Quadratic equation is always guaranteed to have a root.
• Calculate only the root that sums the square root of the discriminant, not the one that subtracts it.
• Round the value / return only integer value.