Express (x+9)^2 as a trinomial in standard form.

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Mneute asked May 1, 2023

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Express (x+9)^2 as a trinomial in standard form.

Mathematics
college

Mneute asked May 1, 2023

by Mneute

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Answer:

x^2 + 18x + 81

Explanation:

(x+9) (x+9)

then distributive property

Perimosh answered May 1, 2023

by Perimosh

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$(x+9)^2\\\\=x^2 + 2\cdot 9 \cdot x + 9^2\\\\=x^2 +18x+81$

Connorbode answered May 7, 2023

by Connorbode

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