Rhett decides to build a square room for his movie and music collection. If the area of the room is 9x2 − 6x + 1 square feet, what is the length of one side of the room? (3x + 1) feet (9x − 1) feet (3x − 1) feet (9x + 1) feet
Area of a square given by \[A=z^2\]where z= length of one side of room. So if the total area is given by \[9x^2 − 6x + 1=z^2\]Solve for z. Factor the left side of the equation. Hint: factors are in form of\[ (ax+b)^2 \]
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