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

User Francois Wouts
by
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2 Answers

7 votes

Answer:

x^2 + 18x + 81

Explanation:

(x+9) (x+9)

then distributive property

User Maliaka
by
8.3k points
4 votes


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

User Neilkimmett
by
8.1k points
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