Question

решите уравнение (2x-1)(4x^2+2x+1)-8x(x^2+1)=3x+4

Answer 1

$(2x - 1)(4 {x}^{2} + 2x + 1) - 8x( {x}^{2} + 1) = 3x + 4 \\ 8 {x}^{3} - 4 {x}^{2} + 4 {x}^{2} - 2x + 2x - 1 - 8 {x}^{3} - 8x = 3x + 4 \\ - 8x - 1 = 3x + 4 \\ - 11x = 5 \\ x = - \frac{5}{11}$