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

asked Aug 28, 2023 12.7k views

14 votes

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7 votes

Answer:

x^2 + 18x + 81

Explanation:

(x+9) (x+9)

then distributive property

Maliaka answered Aug 30, 2023

3.6k points

4 votes

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

Neilkimmett answered Sep 1, 2023

3.7k points

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