Write the given vector in terms of i and j u 2 8 u 2i 8j
     Write the given vector in terms of i and j.  u = (-2, 8)  u = -2i + 8j  Find 2u, -3v, u + v, and 3u - 4v for the given vectors u and v.  u = (2, 1), v = (5, 8)  2u = (4, 2) 
  
  Solution
Your answer is correct. The correct solution is -2i+8j .
There is a possibility for the wrong answer is : You have given space between -2i and 8j. Please write the vector -2i+8j without pressing the space button. There will be no space between -2i, the plus sign and 8j. Please try the same.

