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In-s [12.5K]
3 years ago
10

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

Mathematics
1 answer:
meriva3 years ago
7 0

9514 1404 393

Answer:

  C.  6x² +20x +30

Step-by-step 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

_____

<em>Additional comment</em>

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

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