Categorisation: Use the quadratic formula to determine the original coefficients of…

MATHEMATICS · Subjective · CBSE · Mathematics · Quadratic Equations · Quadratic Equations

Problem

Categorisation: Use the quadratic formula to determine the original coefficients of the quadratic. [Edexcel GCSE Nov2015-2H Q22] Alison is using the quadratic formula to solve a quadratic equation. She substitutes values into the formula and correctly gets x=−7±49−324x = \frac{-7 \pm \sqrt{49 - 32}}{4} Work out the quadratic equation that Alison is solving. Give your answer in the form ax2+bx+c=0ax^2 + bx + c = 0, where aa, bb and cc are integers.

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