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If x=- 3 5 , where < x < 3 2 , then 80 ( ^2 x- x ) is equal to

Options

  1. A108
  2. B109
  3. C18
  4. D19

Correct answer

B. 109

Step-by-step solution

aligned & x= -3 5 , < x < 3 2 & x= 3 4 x=- 4 5 & 80 ( ^2 x- x ) & =80 ( 9 16 + 4 5 )=45+64=109 aligned

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