4 years ago

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

Mathematics

1 answer:

SVEN [57.7K]4 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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