1.

\left| \begin{array} { c c c } { x - 2 } & { 2 x - 3 } & { 3 x - 4 } \\ { x - 4 } & { 2 x - 9 } & { 3 x - 16 } \\ { x - 8 } & { 2 x - 27 } & { 3 x - 64 } \end{array} \right| = 0

Answer»

subtract first row from second row and third row|x-2 2x-3 3x-4||-2 -6 -12 | =0|-6 -24 -60|(x-2)(360-288)-(2x-3)(120-72)+(3x-4)(48-36)=072x-144-96x+144+36x-48=012x-48=012x=48x=4

thnq very much sir



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