Question

помогите срочно пожалуйста ​

Answer 1

$(x - 2)(x + 2) - (x + 4) {}^{2} = 0 \\ {x}^{2} - 4 - ( {x}^{2} + 8x + 16) = 0 \\ {x}^{2} - 4 - x {}^{2} - 8x - 16 = 0 \\ - 8x - 20 = 0 \\ 8x + 2 0 = 0 \\ 8x = - 20 \\ x = - \frac{20}{8} = - 2.5$