Question

помогите пожалуйста!!!​

Answer 1

$\left(x+1\right)^2 + \left(x-6\right)^2 = 2x^2\\\\\underline{x^2} + 2x + 1 + \underline{x^2} - 12x + 36 - \underline{2x^2} = 0\\\\2x + 1 - 12x + 36 = 0\\\\37 - 10x = 0\\\\10x = 37\\\\\boxed{\boldsymbol{x = 3,7}}$

Ответ: 3,7