The MathGPT.app Team

Four ways to solve a quadratic equation and how to pick one in five seconds: factoring, the quadratic formula, completing the square and square roots.

Photo math solvers fail at reading, not at solving — and a misread produces flawless working on the wrong problem. What to look for, and how to photograph a problem.

The four things to state in every maths prompt, the patterns that get reliable answers, and the three places a general chatbot is confidently wrong about maths.

Every derivative rule worth memorising, grouped by what triggers it — plus the mistake each one invites and three ways to check a derivative in seconds.

Which uses of a maths solver leave you able to do it in an exam and which do not, plus a five-step workflow built around checking your own work rather than replacing it.

Mathway, Symbolab, Photomath, WolframAlpha and the chatbots compared on accounts, free working, photo input and whether answers are computed or generated.

The eight structural algebra errors behind most lost marks — distributing a minus, cancelling terms, losing a root — each with the check that catches it in seconds.