Factorising: WJEC GCSE Higher June 2019 Unit 2 Q12

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Higher June 2019 Unit 2 Q12

WJECHigherCurrent spec4 marksFactorising

12.

(a) Factorise \(81p^2 - 1\). [2]

(b) Factorise \(7t^2 + 19t - 6\). [2]

Mark scheme (a)

Scheme	Marks	Comments
\((9p + 1)(9p - 1)\)	B2	B1 for \((9p \ldots 1)(9p \ldots 1)\)

Mark scheme (b)

Scheme	Marks	Comments
\((7t - 2)(t + 3)\)	B2	B1 for \((7t \ldots 2)(t \ldots 3)\)