Linear, quadratic, cubic, system, and inequality solvers.
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Solve ax + b = 0 equations
Solve 2x2 linear systems
Solve 3x3 linear systems
Solve ax²+bx+c=0 with quadratic formula
Solve ax³+bx²+cx+d=0 cubic equations
Solve ax⁴+bx³+cx²+dx+e=0 quartic equations
Solve |ax+b|=c equations
Solve √(ax+b)=c radical equations
Solve (ax+b)/(cx+d)=e rational equations
Solve a^x=b exponential equations
Solve log_a(x+b)=c equations
Solve sin/cos/tan equations
Solve linear inequalities
Solve ax²+bx+c ⋛ 0 inequalities
Solve a < x < b compound inequalities
Solve |x| ⋛ a inequalities
Solve polynomial ⋛ 0 inequalities
Convert inequalities to interval notation
Graph solution sets on a number line
Verify if x solves an equation
More math tools available
Our equations & inequalities calculators provide accurate, instant results for students, teachers, and professionals. Each calculator uses mathematically verified formulas and handles edge cases like invalid inputs, division by zero, and overflow conditions.
Whether you need to solve equations, compute integrals, find prime factors, or convert between number bases, our equations & inequalities tools deliver reliable results with step-by-step explanations to help you understand the underlying mathematics.