-2.(7p5-7p4-11p2-7)  (((14•(p4))+(11•(p2)))-(9•(p5)))-((-14+(5•(p5)))-11p2)
 Step  2  :Equation at the end of step  2  :  (((14•(p4))+(11•(p2)))-(9•(p5)))-((-14+5p5)-11p2)
 Step  3  :Equation at the end of step  3  :  (((14•(p4))+(11•(p2)))-32p5)-(5p5-11p2-14)
 Step  4  :Equation at the end of step  4  :  (((14•(p4))+11p2)-32p5)-(5p5-11p2-14)
 Step  5  :Equation at the end of step  5  :  (((2•7p4) +  11p2) -  32p5) -  (5p5 - 11p2 - 14)
 Step  6  : Step  7  :