Question

Помогите пожалуйста СРОЧНО

Answer 1

$(x - 1)^{2} {(x + 1)}^{2} - ( {x}^{4} - 2 {x}^{2} - 0.1) = {((x - 1)(x + 1))}^{2} - {x}^{4} + 2 {x}^{2} + 0.1 = {( {x}^{2} - 1) }^{2} - {x}^{4} + 2 {x}^{2} + 0.1 = {x}^{4} - 2 {x}^{2} + 1 - {x}^{4} + 2 {x}^{2} + 0.1 = 1 + 0.1 = 1.1$
${(x - 4)}^{2} = (x - 1)(x + 1) \\ {x}^{2} - 8x + 16 = {x}^{2} - 1 \\ - 8x = - 17 \\ x = \frac{17}{8} = 2 \frac{1}{8}$
${(x - 2)}^{2} {(x + 2)}^{2} -( {x}^{4} - 8 {x}^{2} - 1.6) = {((x - 2)(x + 2))}^{2} - {x}^{4} + 8 {x}^{2} + 1.6 = {( {x}^{2} - 4)}^{2} - {x}^{4} + 8 {x}^{2} + 1.6 = {x}^{4} - 8 {x}^{2} + 16 - {x}^{4} + 8 {x}^{2} + 1.6 = 17.6$