Question

(1+x+x²+x³)×(1-x)= please answer​

Answer 1

Answer:

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