Question

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Answer 1

Answer:

The length of the third side of the triangle is

$2p {}^{2} + 3p + 5$

Step-by-step explanation:

The complete solution is in the attachment.

Hope it helps you!

Answer 2

perimeter of triangle = 6p²-4p+9

first side = p²-2p+1

second side = 3p²-5p+3

Sum of both side = p²-2p+1+3p²-5p+3

= 4p²-7p+4

Now we must substracted the sum from perimeter.

= 6p²-4p+9-(4p²-7p+4)

= 6p²-4p+9-4p²+7p-4

= 6p²-4p²-4p+7p+9-4

= 2p²+3p+5.

So, third side = 2p²+3p+5.