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If satisfies the equation 2 2 ^3 x-54 2 ^3 x=19 , then possible value of ( .2 ^2 + 2 ) can be equal to:

Options

  1. A6
  2. B12
  3. C2
  4. D-4 2

Correct answer

C. 2

Step-by-step solution

( 2 x)^3+(-3 2 x)^3+(-1)^3=18 array ll & 2 x-3 2 x-1=0 2 ^2 x- x-3 2 =0 & x= 1 1+24 2 2 = 1 5 2 2 & x= 3 2 or - 2 & 2 ^2 + 2 =12,2 array

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