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# What is the answer and how do you solve this?

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- ♥Astrid♥Lv 72 months ago
A = Length*Width = 10 cm²

A = (x + 3)(x) = 10

x² + 3x - 10 = 0

(x + 5)(x - 2) = 0

x = -5 or 2

-5 makes no sense, throw it out

x = 2 cm ...ANSWER

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