Question

Rezolvati in R ecuatia : a) x(x-1)(x-2)(x-3)=3; b) (x+2)(x+3)(x+4)(x+5)=3 va rog

Answer 1

x(x-1)(x-2)(x-3)=3⇒
(x²-x)(x-2)(x-3)=3⇒
(x³-2x²-x²-2x)(x-3)=3⇒
(x³-3x²-2x)(x-3)=3⇒
x∧4-3x³-3x³+9x²-2x³+6x=3⇒
x∧4-8x³+9x²+6x-3=0
sucees