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Find roots of polynomial equations up to degree 4. See formula, step-by-step solution and all rearrangements. Instant math solver.

Divide a polynomial by a linear factor using synthetic division. Enter coefficients — see each step, the quotient, and remainder. Free.

Decompose any rational expression into partial fractions. Enter numerator and denominator — see the fraction decomposition with steps. Free.

Find complex roots of quadratic and polynomial equations. Enter your polynomial — see all real and complex roots with modulus and argument. Free.

Solve logarithmic equations step by step. See formula, step-by-step solution and all rearrangements. Instant math solver.

Solve linear and quadratic inequalities step by step. Enter your inequality — see the solution set, interval notation, and number line. Free.

Find the domain and range of any function. Enter your expression — see the domain restrictions (division, square roots, logs) and range. Free.

Find the inverse function of any one-to-one function. Enter f(x) — get f⁻¹(x) with derivation steps and domain/range swap. Free.