Longhand

Algebra Calculators

Algebra calculators solve for an unknown value and show how the equation was handled, so you can follow each step rather than just copy an answer.

Which calculator do you need?

CalculatorUse it when
Quadratic Formula CalculatorYou have an equation of the form ax² + bx + c = 0 and want its roots.
Linear Equation CalculatorYou have an equation like 2x + 3 = 5x − 9 with x only to the first power.
Quadratic Formula CalculatorSolve ax² + bx + c = 0 and see the discriminant, both roots and every step.
Linear Equation CalculatorSolve ax + b = cx + d with steps, a check, and clear answers when there is no solution or infinitely many.

Every algebra calculator shows the formula and the working, and is checked against hand-worked examples. See how we verify our maths.