(x-2)(x²+2x+1)=4(x+1)

Question

(x-2)(x²+2x+1)=4(x+1)

Answer 1

(x-2)(x²+2x+1)=4(x+1) X³+2x²+x-2x²-4x-2-4x-1=0 X³-7x-3=0 D=49+12=61 X1=-7+61/2=27 X2=-7-61/2=-34

Comments

ответ должен быть -2 и -1,3