Algebra-1 Problems

13.3 Completing the Square in Quadratic Expressions
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1.

What should be added to the expression to complete the square?

\begin{equation}x^{2}+18x\end{equation}

2.

What should be added to the expression to complete the square?

\begin{equation}x^{2}-9x\end{equation}

3.

What should be added to the expression to complete the square?

\begin{equation}3x^{2}+54x\end{equation}

4.

What should be added to the expression to complete the square?

\begin{equation}8x^{2}-8x\end{equation}