Question

Помогите пожалуйста умоляю

Answer 1

1)=х²-4; =36b²-49a²

2)=25m²-1; =25-4m²

3)=n²-8n+16; =9a²-6a+1; =25y²-30xy+9x²

2.1)=(m-1)(m+1); =(7n-10)(7n+10); =(3a-2b)(3a+2b;

2)=(m-y)²; =(n+3b)²;