the lenghth of rectangle is 5x²-6 and its breadth is 2x²-2.Find it's perimeter.
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perimeter=2(l+b)
=2(5x²-6+2x²-2)
=2(7x²-8)
=14x²-16.
=2(5x²-6+2x²-2)
=2(7x²-8)
=14x²-16.
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