Higher June 2025 Paper 2 Q21

EdexcelCurrent spec2 marksQuadratic Inequalities

21 Solve \((3x - 1)(5x + 2) \lt 0\) (2)

Mark scheme

Answer	Mark	Mark scheme
\(-\dfrac{2}{5} \lt x \lt \dfrac{1}{3}\)	B2	for \(-\dfrac{2}{5} \lt x \lt \dfrac{1}{3}\) oe
\(-\dfrac{2}{5} \lt x \lt \dfrac{1}{3}\)	(B1	For correct critical values of \(-\dfrac{2}{5}\) and \(\dfrac{1}{3}\) oe)

May be given as two separate inequalities

Accept \(-0.4\) and 0.33 (or better)