Question 634859
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
 (3y^2-2y+6)-(y^2-8y-2)
  3y^2-2y+6 
+ <u>-y^2+8y+2)</u>
   y^2 + 6y +8

 3c-7d +
-4c+3d +
<u>5c-8d</u>
 4x-12d