Question 8: Performing the calculation \(9 x-(x+1)^{2}\) we get

14/01/2022 // by admin// Leave a Comment

Question 8: Performing the calculation \(9 x-(x+1)^{2}\) we get

A. \( x-1 \)

B. \(-2x^{2}+2 x-1 \)

C. \(-x^{2}+7 x-1 \)

D. \(3x^{2}+4x-1 \)

\(9 x-(x+1)^{2}=9 x-\left(x^{2}+2 x+1\right)=9 xx^{2}-2 x-1=-x^ {2}+7 x-1 \)

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