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FR

Example Problems

Determine whether to add or subtract the following system of equations to eliminate a variable:

\begin{cases} 4x + 6y = 18 \\ 5x - 6y = 7 \end{cases}

Graph the quadratic equation:

y = (x - 2)(x - 4)

Factor completely:

x^2 + x - 6

Add:

(3x^2 + 4) + (5x^2 + 8)

Write the solution in polynomial standard form.

Consider the following rational expression:

\frac{x^2 - 1}{5x^2 + 5x}

What is an equivalent expression in lowest terms?

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