## Exam Style Question## Worked solutions to typical exam type questions that you can reveal gradually |

Question id: 196. This question is similar to one that appeared in a GCSE Higher paper (specimen) for 2017. The use of a calculator is allowed.

If \(y = 5x^4 + 3x^2\) and \(x=\sqrt{w+2}\), find \(w\) when \(y = 12\) showing each step of your working.

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If you need more practice solving quadratics try the self-checking interactive exercises called Quadratic Equations.

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