Equation Solver not working? Here's how to fix it
Most issues with the Equation Solver are small and fixable in seconds. Work through these in order.
1. The result says "no real roots"
This is correct when the discriminant (b² − 4ac) is negative. If you expected real solutions, double-check your coefficients — a sign error, such as entering b as 5 instead of −5, easily makes the discriminant negative.
2. The roots don't match your manual work
Check the signs of b and c. In x² − 5x + 6 = 0, b is −5, not 5. Entering the wrong sign changes both roots. Verify each coefficient matches your equation before solving.
3. Nothing computes or the result is blank
Make sure you entered values for all three coefficients (a, b, and c). If a is zero, the equation is linear, not quadratic, and the solver can't apply the quadratic formula. Set a to a non-zero value.
4. The vertex location seems off
The vertex is at x = −b / 2a. If it looks wrong, your b or a sign is likely incorrect. Recheck that a is the x² coefficient and b is the x coefficient, not swapped.
5. The tool won't load at all
Reload the page or open it in a fresh tab. If an extension blocks scripts, try private (incognito) mode — the solver needs JavaScript, which is on by default in every modern browser.
Still stuck?
Try a different current browser (Chrome, Firefox, Safari, Edge). The tool behaves the same everywhere, so a fresh environment usually resolves the last edge cases.
Verdict
Most problems with Equation Solver are solved by checking coefficient signs, confirming a is non-zero, and reloading the page.