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jeka57 [31]
2 years ago
6

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

Mathematics
2 answers:
slava [35]2 years ago
7 0

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

Andreyy892 years ago
5 0

Answer:

x^2 + 18x + 81

Step-by-step explanation:

(x+9) (x+9)

then distributive property

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