Question

Решите 5 номер пожалуйста))

Answer 1

${(x - 5)}^{2} - {x}^{2} = 3 \\ {x}^{2} - 10x + 25 - {x}^{2} = 3 \\ - 10x = 3 - 25 \\ - 10x = - 22 \\ x = \frac{22}{10} = \frac{11}{5} = 2 \frac{1}{5}$
Ответ: 2 1/5.

$(6x - 1)(6x + 1) - 4x(9x + 2) = - 1 \\ 36 {x}^{2} - 1 - 36 {x}^{2} - 8x = - 1 \\ - 8x = 0 \\ x = 0$
Ответ: 0.