Question

-5(x – 3 y)² + 7(3 y - x)​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

-5(x-3y)^2+7(3y-x)

-5(x^2+9y^2-6xy)+21y-7x

-5x^2-45y^2+30xy+21y-7x