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Find the area of a square tile which has a width of 3x - 5

User Eric MSFT
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2 Answers

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15 I don't know ‍♀️ gdyshdgxjsvsshdhfshdjd
User WebEpic
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3 votes

Answer:


9x^2 - 30x + 25

Explanation:

To solve for area, multiply the width times the height. In this case, since the shape is a square, the width is the same as the height. So, multiplying 3x - 5 times 3x - 5 should give us the area.


(3x-5)(3x-5)\\(3x)(3x) + (3x)(-5) + (-5)(3x) + (-5)(-5)\\9x^2 - 15x - 15x + 25\\9x^2 - 30x + 25

If you don't understand the algebra there, use an area model, and please let me know if you're not sure how to do that. I'll help you out as much as I can! :)

User Pmohandas
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