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Pls help. Am desperate. (dont give wrong answer pls) Look at the image!

Pls help. Am desperate. (dont give wrong answer pls) Look at the image!-example-1
User KTC
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1 Answer

5 votes

9514 1404 393

Answer:

C. 6x² +20x +30

Explanation:

The perimeter of a rectangle is given by the formula ...

P = 2(L +W)

Substituting the given length and width, you have ...

P = 2((3x² +7x +9) +(3x +6))

Simplifying gives ...

P = 2(3x² +10x +15)

P = 6x² +20x +30

_____

Additional comment

"Standard form" has the terms in order of decreasing exponents. The expression of choice D is equivalent, but is not in standard form.

User Palacsint
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