# Two piece wise functions

**Algebra**Level 4

Then a piece wise function \(f(x)=\begin{cases}
x^2 & \text{for} & 1<x \leq 2
\\ 4x & \text{for} & x > 2 \end{cases}\) can be written in terms of S as \(f(x)=x^2+(ax-x^2)S(x+b)\)

Then, find the value of a+b

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