Examples

x3+x2+1x3+x2+1 , x2+7x+1x2+7x+1
Step 1
Add the expressions.
x3+x2+1+x2+7x+1x3+x2+1+x2+7x+1
Step 2
Add x2x2 and x2x2.
x3+2x2+1+7x+1x3+2x2+1+7x+1
Step 3
Add 11 and 11.
x3+2x2+7x+2x3+2x2+7x+2
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 [x2  12  π  xdx ]  x2  12  π  xdx  
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