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the rectangular plant box has an area of 9b² - 64 square cm, it is 3b - 8 cm wide, how long is the rectangular lot?
SOLUTION:​


Sagot :

Geometry

The rectangular plant box has an area of 9b² - 64 square cm, it is 3b - 8 cm wide. How long is the rectangular lot?

[tex]\:[/tex]

Solution:

[tex]\tt \Large \rightarrow \frac{9b^2 - 64}{3b - 8}[/tex]

[tex]\tt \Large \rightarrow \frac{(3b - 8) \times (3b + 8)}{3b - 8}[/tex]

[tex]\tt \Large \rightarrow \frac{\cancel{(3b - 8)} \times (3b + 8)}{\cancel{3b - 8}}[/tex]

[tex]\tt \Large \rightarrow \purple{\bold{3b + 8}}[/tex]

[tex]\:[/tex]

Answer:

The rectangular lot is [tex]\tt \Large \purple{\bold{3b + 8 \: \: cm}}[/tex] long.

[tex]\:[/tex]

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