x3 + 3×2 – 5x – 15
x3 + 2×2 – 3x – 6
x3 – 3×2 – 5x + 15
x3 – 2×2 – 3x + 6
3 Answers

1) x^3+3x^25x15=0 has 3 distinct real roots:
x=3, x=+/ 2.236068=+/sqrt(5)
2) x^3+2x^23x6=0 has 3 distinct real roots:
x=2, x=+/ 1.732051=+/ sqrt(3)
3) x^33x^25x+15=0 has 3 distinct real roots:
x=3, x=+/2.236068=+/sqrt(5)
4) x^32x^23x+6=0 has 3 distinct real roots:
x=2, x=+/ 1.732051=+/sqrt(3). Answer.

x = √3 and again, √3 and 2??
Hence, (x – √3)(x – √3)(x – 2)…??
:)>

ASK A G O O K