Question

2,2степень2-2,8степень2пж!!!

Answer 1

2,2²-2,8²=(2,2-2,8)(2,2+2,8)=-0,6*5= -3.

Answer 2

I'm not sure I understand your question or statement. It seems to contain some mathematical notation and symbols. If you have a specific math-related question or need help with a mathematical expression, please provide more context or clarify what you'd like to know, and I'll do my best to assist you.