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pav-90 [236]
3 years ago
11

If a square has a length of 3x-y, what is its area?

Mathematics
1 answer:
SVEN [57.7K]3 years ago
7 0

Answer:

  9x² -6xy +y²

Step-by-step explanation:

The square of the binomial can be written directly using the relationship ...

  (a +b)² = a² +2ab +b²

where you have a=3x and b=-y.

  area = (3x -y)² = (3x)² + 2(3x)(-y) + (-y)²

  area = 9x² -6xy +y²

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