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jeka57 [31]
1 year ago
6

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

Mathematics
2 answers:
slava [35]1 year ago
7 0

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

Andreyy891 year ago
5 0

Answer:

x^2 + 18x + 81

Step-by-step explanation:

(x+9) (x+9)

then distributive property

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<h3>What is a ratio?</h3>

A ratio is a quantitative relation showing the comparison between two or more numbers. It can also be written in the fractional form where the first part is the numerator and the second part is called the denominator.

From the given information:

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We are being told that the longest side is the triangle is equal to 40.

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\mathbf{x = 40 \div \dfrac{8}{17}}

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brainly.com/question/2328454

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