| CommandSimplify Expression 
 A sum that consists of 4 terms; the 1st  term of the sum  is equal to  a product consisting of 2 factors; the 1st  factor of the product  is equal to  three;  the 2nd  factor of the product  is equal to   a 2-th; the 2nd  term of the sum  is   a negative product that consists of 2 factors; the 1st  factor of the product  is equal to  six;  the 2nd  factor of the product  is equal to   b 2-th; the 3rd  term of the sum  is equal to   a negative sum consisting of 2 terms; the 1st  term of the sum  is equal to   a 2-th; the 2nd  term of the sum  is equal to   a negative product comprising 2 factors; the 1st  factor of the product  is  a; the 2nd  factor of the product  is  b; the 4th  term of the sum  is  a sum that contains 2 terms; the 1st  term of the sum  is  a product comprising 3 factors; the 1st  factor of the product  is equal to  three;  the 2nd  factor of the product  is equal to  a; the 3rd  factor of the product  is  b; the 2nd  term of the sum  is equal to   negative  b 2-th;three   multiplied by  a  2-th plus  negative six  multiplied by  b 2-th plus  negative open bracket  a 2-th plus  a negative multiplied by b close bracket plus opening brace three  times a times b plus  negative  b 2-th closing brace;
Result 
 A sum that comprises 3 terms.  The 1st  term of the sum  is equal to  a product that contains 2 factors.  The 1st  factor of the product  is equal to   negative seven.   The 2nd  factor of the product  is equal to   b 2-th.  The 2nd  term of the sum  is equal to  a product that contains 3 factors.  The 1st  factor of the product  is equal to  four.   The 2nd  factor of the product  is equal to  a.  The 3rd  factor of the product  is  b.  The 3rd  term of the sum  is equal to  a product consisting of 2 factors.  The 1st  factor of the product  is equal to  two.   The 2nd  factor of the product  is equal to   a 2-th.negative seven  times  b 2-th plus four  multiplied by a times b plus two  times  a 2-th;
 
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