Solve ax + b = 0
Solve ax² + bx + c = 0 using the quadratic formula
Solve ax³ + bx² + cx + d = 0 (Cardano's method)
Evaluate f(x) = aₙxⁿ + ... + a₁x + a₀ at a given x
Solve linear, quadratic, and cubic polynomial equations with step-by-step solutions. Also evaluate any polynomial at a given x value using Horner's method.
Free online polynomial equation solver. Solve linear (ax+b=0), quadratic (ax²+bx+c=0), and cubic equations with step-by-step solutions. Evaluate polynomials using Horner's method.