Question

рЕШИТЕ ПЖЛ 2X-(X-2)(X+2)=5-(x-1)^2

Answer 1

2x-x^2+4=5-x^2+2x-1
2x-x^2+4-5+x^2-2x+1=0

Answer 2

2x-x^2+4=5-x^2+2x-1

2x-x^2+4-5+x^2-2x+1=0

0=0

x - любое