M=(1/x+5-5 x/25-x^2+1/x-5) ·x^2-10 x+25/5 x - Dicamon

Question

M=(1/x+5-5 x/25-x^2+1/x-5) ·x^2-10 x+25/5 x  b Ruit gan C Tim gió thi cia M lini x=-6

Answer

a)  x = - 6  M c) Thay  A K ×∞ : x ± 5 , x  0 varo  M = 7 ·( - 6 - 5  )/5 ·( - 6 + 5  ) = 7 ·( - 11  )/5 ·( - 1  ) = - 77/- 5 = 77/5 ta duide:  .  3 M = ( 1/x + 5 - 5 x/25 - x^2 +

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