Algebraic Fractions: WJEC GCSE Higher November 2017 Unit 1 Q17

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Higher November 2017 Unit 1 Q17

17. Simplify \(\dfrac{12x + 16}{9x^2 - 16}\). [4]

Mark scheme

Scheme	Marks	Comments
(Numerator) \(4(3x + 4)\)	B1
(Denominator) \((3x + 4)(3x - 4)\)	B2	B1 for \((3x \ldots 4)(3x \ldots 4)\)
\(\dfrac{4}{3x - 4}\)	B1	Mark final answer. F.T. provided no more than 1 previous error and provided simplification required.