Edexcel C2 2011 January — Question 1 7 marks

Exam BoardEdexcel
ModuleC2 (Core Mathematics 2)
Year2011
SessionJanuary
Marks7
PaperDownload PDF ↗
Mark schemeDownload PDF ↗
TopicFactor & Remainder Theorem
TypeTwo unknowns with show-that step
DifficultyModerate -0.3 This is a straightforward application of the Remainder Theorem requiring students to substitute values and solve simultaneous equations. Part (a) is a 'show that' which guides students to one equation, and part (b) completes the standard process. While it involves two unknowns, the method is routine for C2 level with no conceptual challenges beyond direct application of the theorem.
Spec1.02j Manipulate polynomials: expanding, factorising, division, factor theorem

1. $$\mathrm { f } ( x ) = x ^ { 4 } + x ^ { 3 } + 2 x ^ { 2 } + a x + b$$ where \(a\) and \(b\) are constants. When \(\mathrm { f } ( x )\) is divided by \(( x - 1 )\), the remainder is 7 .
  1. Show that \(a + b = 3\). When \(\mathrm { f } ( x )\) is divided by \(( x + 2 )\), the remainder is - 8 .
  2. Find the value of \(a\) and the value of \(b\).

I don't see any actual mark scheme content in the text you've provided. What I see is:
1. A table of numerical values (x-coordinates from 1 to 1.9 with corresponding y-values)
2. A reference to "PMT" and "PhysicsAndMathsTutor.com"
3. Standard publication/administrative information from Edexcel
There are no marking annotations (M1, A1, B1, DM1, etc.), no assessment criteria, and no guidance notes that would constitute a mark scheme.
Could you please provide the actual mark scheme content you'd like me to clean up? It should include items like:
- Marking points with point values
- Annotations like "M1", "A1", "B1", etc.
- Model answers or acceptance criteria
- Examiner's notes or guidance
I don't see any actual mark scheme content in the text you've provided. What I see is:

1. A table of numerical values (x-coordinates from 1 to 1.9 with corresponding y-values)
2. A reference to "PMT" and "PhysicsAndMathsTutor.com"
3. Standard publication/administrative information from Edexcel

There are no marking annotations (M1, A1, B1, DM1, etc.), no assessment criteria, and no guidance notes that would constitute a mark scheme.

Could you please provide the actual mark scheme content you'd like me to clean up? It should include items like:
- Marking points with point values
- Annotations like "M1", "A1", "B1", etc.
- Model answers or acceptance criteria
- Examiner's notes or guidance
1.

$$\mathrm { f } ( x ) = x ^ { 4 } + x ^ { 3 } + 2 x ^ { 2 } + a x + b$$

where $a$ and $b$ are constants.

When $\mathrm { f } ( x )$ is divided by $( x - 1 )$, the remainder is 7 .
\begin{enumerate}[label=(\alph*)]
\item Show that $a + b = 3$.

When $\mathrm { f } ( x )$ is divided by $( x + 2 )$, the remainder is - 8 .
\item Find the value of $a$ and the value of $b$.
\end{enumerate}

\hfill \mbox{\textit{Edexcel C2 2011 Q1 [7]}}