Question

10. If x² + x - 2 is the G.C.D of the expression (x-1) (2x + 5x + 2) & (x + 2)
(3x2 - 4x + 1) then LCM is
a) 6x4 + 13x - 18x2-3x + 2
b) 6x4 - 13x + 18x2 + 3x - 2
c) 6x4 + 13x8 + 18x2 + 3x - 2
d) None​

Answer 1

Answer:

x2−3x+2=(x−2)(x−3)

x2−4x+4=(x−2)2

∴G.C.D. is common factor 

⇒(x−2)