Respuesta :

Answer: −3x²​​−15x−30

Step-by-step explanation: use Square of Sum (a+b)²=a²+2ab+b²

−3(x²​​+2x×3+3²)-3+3x

−(3x²​​ +18x+27)−3+3x

−3x​​²−18x−27−3+3x

−​3x²+(−18x+3x)+(−27−3)

−3x²​​−15x−30

Hope this helps, now you know the answer and how to do it. Stay healthy and safe and HAVE A BLESSED AND WONDERFUL DAY! :-)

- Cutiepatutie ☺❀❤

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