Question

$3(x + y) - 9(x + y) {}^{2}$


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Answer 1

Here's your answer....

Hope it helps you...

Answer 2

Answer:

the answer is 3x+3y-9x^2-18xy-9y^2

Step-by-step explanation:

$3(x + y) - 9 {(x + y)}^{2} \\ = 3x + 3y - 9 ({x}^{2} + 2(x)(y) + {y}^{2}) \\ = 3x + 3y - 9({x}^{2} + 2xy + {y}^{2} ) \\ = 3x + 3y - 9 {x}^{2} - 18xy - 9 {y}^{2}$