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Mathematics 16 Online
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

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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