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Find a polynomial that represents the area of the
square.

Find a polynomial that represents the area of the square.-example-1

1 Answer

8 votes

Answer:

16x² + 72x + 81

Explanation:

The area of a square is
s^2, where s = side. In this case, we're given the side length as 4x + 9.


  • (4x+9)^2 = (4x+9)(4x+9)

  • (4x+9)(4x+9)=(4x)(4x)+(4x)(9)+(9)(4x)+(9)(9)

  • 16x^2+36x+36x+81

  • 16x^2+72x+81

Therefore, the answer is 16x² + 72x + 81.

User Marius Tancredi
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