Question

1)69-(13-y)^2=-y^2
2)(9-b)(b-9)+(4-b)^2=0

Answer 1

Ответ на фотографии.

Answer 2

Реши плез

Answer 3

(X+2)(x+3)-3=(x+1)²

Answer 4

X²+2x+3x+6-3=x²+2x+1

Answer 5

3x=-2

Answer 6

X=-⅔