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OpenStudy (anonymous):
Which of the following represents the area of a rectangle whose length is 5x – 3 and whose width is x + 7? 5x2 – 21 5x2 + 9x – 21 5x2 + 32x – 21 5x2 – 32x – 21
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Parth (parthkohli):
Memorize this thing: Area is length times width.
OpenStudy (anonymous):
i know that formula!
Parth (parthkohli):
\[\rm (5x-3)(x+7) \]
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