svp pouvez m'aider. Factoriser x(x+1)(x+2)(x+3)+1 mercii​

bsr

x(x+1)(x+2)(x+3)+1

(x²+x)(x+2)(x+3)+1

(x³+2x²+x²+2x)(x+3)+1

(x³+3x²+2x(x+3)+1

x⁴+3x³+3x³+9x²+2x²+6x+1

x²(x²+3x+1)+3x(x²+3x+1)x²+3x+1

(x²+3x+1)(x²+3x+1)

(x²+3x+1)²

bye