An algebra problem by Razif FA

Algebra Level 2

\[ \dfrac{x^2-1}{x+1} + \dfrac{(x+1)^2-1}{x+2} + \dfrac{(x+2)^2-1}{x+3} \]

Given that \(x>0\), the expression above simplifies to:

\[1\] \[3(x-1)^2\] \[3x-1\] \[(x+1)^2\] \[3(x+1)^2\] \[(x-1)^2\] \[3x+1\] \[3x\]

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