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

Question

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

Answer 1

Ответ на фотографии.

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Comments

(Х+2)(x+3)-3=(x+1)^2

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Реши плез

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(X+2)(x+3)-3=(x+1)²

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X²+2x+3x+6-3=x²+2x+1

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3x=-2

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X=-⅔