Question 5: Performing the calculation \(4 \cdot(x+1)^{2}-4 x^{2}+2\) we get
\(4 \cdot(x+1)^{2}-4 x^{2}+2=4\left(x^{2}+2 x+1\right)-4 x^{2}+2 =4 x^{2}+8 x+4-4 x^{2}+2=8 x+6 \)
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Question 5: Performing the calculation \(4 \cdot(x+1)^{2}-4 x^{2}+2\) we get
\(4 \cdot(x+1)^{2}-4 x^{2}+2=4\left(x^{2}+2 x+1\right)-4 x^{2}+2 =4 x^{2}+8 x+4-4 x^{2}+2=8 x+6 \)
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