Question

X cube minus 4 x square minus x plus 1 is equal to x minus 2 the whole cube

Answer 1

Step-by-step explanation:

x³+4x²-x+1=(x-2)³

identity:( x-y)³=x³-y³-3x²y+3xy²

same way: (x-2)³=x³-2³-3×x²×2+3×x×2

x³-8-6x²+6x

given:x³-4x²-x+1=x3-6x²-8+6x

x³ will be cut

and like terms will be transposed

-4x²-x+1=-6x²-8+6x

2x²-7x+9=0