Question

помогите пожалуйста

Answer 1

(x²-1)(x²+4x+3)=0
x⁴+4x³+3x²-x²-4x-3=0
x⁴+4x³+2x²-4x-3=0

Answer 2

$( {x}^{2} - 1)( {x}^{2} + 4x + 3) = 0$
${x}^{4} + 4 {x}^{3} + 3x - x - {4}^{x} - 3 = 0$
${x}^{4} + 4 {x}^{3} + 2 {x}^{2} - 4x - 3 = 0$