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Equations and Inequalities
Quick questions on Quadratic equations explained: N(A)-Level Mathematics Equations and Inequalities
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is solving by factorisation?Show answer
When the quadratic factorises into two brackets, solving is quick.
What is the quadratic formula?Show answer
When a quadratic does not factorise neatly, use the formula:
What is sign errors in the formula?Show answer
With negative, becomes positive. For , the term is .
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