Edexcel Paper 1 2022 June — Question 2

Exam BoardEdexcel
ModulePaper 1 (Paper 1)
Year2022
SessionJune
TopicFactor & Remainder Theorem
TypeSingle unknown constant

  1. \(\mathrm { f } ( x ) = ( x - 4 ) \left( x ^ { 2 } - 3 x + k \right) - 42\) where \(k\) is a constant Given that \(( x + 2 )\) is a factor of \(\mathrm { f } ( x )\), find the value of \(k\).