Input interpretation
quadratic formula
Basic definition
The formula that gives the roots of a quadratic equation.
Detailed definition
The formula giving the roots of a quadratic equation
ax^2 + bx + c = 0
as
x = (-b ± sqrt(b^2 – 4ac))/(2a).
An alternate form is given by
x = (2c)/(-b ± sqrt(b^2 – 4ac)).
Related topics
completing the square | quadratic | quadratic equation
Educational grade level
high school level (California Algebra I standard)
Subject classifications
algebraic equations