Pls help me
The perimeter of a triangle is 7p^2-8p+9 and two of its sides are 2p^2-p+1 and 11p^2-3p+5.find the third side of the triangle.
if you give me correct answer I will mark you as brainlist.
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Answer:
(2p²-p+1)+(11p²-3p+5) + x = 7p²-8p+9
13p²-4p + 6 + x = 7p²-8p +9
6p² + 4p - 3 + x = 0
x = -6p²-4p +3
x = -(6p²+4p -3)
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