the perimeter of a triangle is 6p2-4p+9 and two of its side are p2-2p+1 and 3p2-5p+3.Findthe third side of the triangle
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Perimeter of triangle is sum of all its side which is 6p²-4p+9
One side is p²-2p+1
second side is 3p²-5p+3
third side is perimeter - ( one side + second side)
=> 6p²-4p+9-p²+2p-1-3p²+5p-3
=> 2p²+3p+5
therefore, third side of triangle is 2p²+3p+5
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