Solve Math Step by Step Online (Free)
Quadratics, derivatives, matrices, probability, and statistics solved with every rule and substitution shown — learn from the work, not just the answer.
Problem
You can get any answer from a calculator, but exams and homework grade the working — and most tools hide exactly that part.
What to do
Each solver in the math suite treats the derivation as the product: the quadratic solver shows the discriminant with your numbers substituted before it shows the roots; the derivative calculator logs each chain-rule application; the matrix calculator animates every Gauss-Jordan row operation in exact fractions. Compare its steps with yours line by line to find exactly where an attempt went wrong.
- 1Pick the solver that matches the problem — equations, derivatives, matrices, probability, or statistics.
- 2Enter your exact problem (or start from an example chip).
- 3Read the numbered steps: every formula is shown first, then with your values substituted.
- 4Redo the problem yourself and diff your working against the solver's steps to locate mistakes.
Use the browser tool
Equation Step Solver works through linear equations, quadratics and 2×2 systems and shows every step rather than just the answer: the discriminant computed before the roots, the quadratic formula with your actual numbers substituted in, the factored form when the roots are rational, and a graph where the roots are the x-intercepts. It is built for the case where you already have the answer from the back of the book and need to find which line of your own working went wrong.
People also ask
- What does the discriminant tell me?
- b² − 4ac. Positive means two distinct real roots, zero means one repeated root, negative means no real roots (two complex ones). Checking it first tells you what kind of answer to expect.
- Why does it show a factored form only sometimes?
- Factoring is only shown when the roots are rational, because that is when the factored form has clean integer or fractional coefficients. Irrational roots factor, but not into anything more readable than the roots themselves.
- Can it solve equations with no solution?
- Yes, and it says so. A linear equation that reduces to something like 3 = 5 has no solution; one that reduces to 0 = 0 is true for every x.