Renaming the inner input

Renaming the inner input

3 marks
TGM Original
Let g(x)=2x+1 and fg(x)=4x2+4x+6, for all real x. Find f(x).

Solution:

Solution locked

680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs tuition enrolment.

Create a free account to practise similar questions.

Answer:\(\mathrm f(x)=x^2+5\), \(x\in\mathbb R\).

Need help? Join our JC Math tuition classes.

Learn more