" 21."|[x,-6,-1],[2,-3x,x-3],[-3,2x,x+2]|=0

Solve for x , |[x,-6,-1], [ 2,-3x,x-3], [-3, 2x, x+2]| =0.

Solve for x , |[x,-6,-1], [ 2,-3x,x-3], [-3, 2x, x+2]| =0.

Show that x=2 is a root of [[x,-6,-1],[2,-3x,x-3],[-3,2x,x+2]]=0 Solve this completely,

Show that x = 2 is a root of the equation |[x, -6, -1], [2, -3x, x-3], [-3, 2x, 2+x]|=0

If |{:(x,-6,-1),(2,-3x,x-3),(-3,2x,x+2):}|=0 then x = ……..

Solve for x,det[[x,-6,-12,-3x,x-3-3,2x,x+2]]=0

show that x =2 is a root to the equation |{:(x,-6,-1),(2,-3x,x-3),(-3,2x,2+x):}|=0

The total number of distinct x in R for which |[x, x^2, 1+x^3] , [2x,4x^2,1+8x^3] , [3x, 9x^2,1+27x^3]|=10 is (A) 0 (B) 1 (C) 2 (D) 3