1) The perimeter of a triangle is 8+13a +7a ^2 and teo of its sides are 2a^2+ 3a+2 and 3a^2-4a-1. find the third side of the triangle.
2) The perimeter of a rectangle of 16x^3 - 6x^2+ 12x4. if one of its side is 8x^2+3x, find the other side
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see the solution in the above rough page. Use the formulae of perimeter for these type of similar problem and also for the problems related to area.
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hope it will helpful for you
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