(x +1) + ( x+3) + (x + 5) + … + (x + 99) = 0

0 bình luận về “(x +1) + ( x+3) + (x + 5) + … + (x + 99) = 0”

1. (x +1) + ( x+3) + (x + 5) + … + (x + 99) = 0

   ⇒50x+(1+3+…+99)=0

   ⇒50x+2500=0

   ⇒50x=-2500

   ⇒x=-50

   Trả lời